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Fake-out double-sided lock

fool the burglar into thinking the lock needs a key on both sides-but it doesn't!
  (+5, -7)
(+5, -7)
  [vote for,
against]

Some doors have a window right next to them, some of which wide enough for an arm to reach through if broken. This is a potential break-in point (no pun intended) because a burglar could then reach in and flip over the lock to open. One could foil such a burglar by installing a lock that needs a key on both sides... BUT then of course losing your key can also get you locked IN your house-oops :) this type of door also presents quite a hazard, because if your house ever started on fire you'd have to dig around for a key and you may forget where it is in a panic. Leaving the key in the door would defeat the purpose of having a double-sided lock in the first place

This "fake out" lock basically is a dead-bolt lock that opens normally from the outside with a key, but it has a pop-out inside handle that, when pushed in, looks like a key hole, because the handle is flush with the inside lock part of the door, and has a slot that is designed to look (and feel) like a keyhole. To open from the inside, you simply push on the key hole part and it pops out, with a small indent on one side to aid in turning it. This way, if a burglar breaks the window on or near the door with the intent of unlocking the door, he/she would feel the inside of the door and think that it was a both-side-key door. If they pushed on the keyhole part, and it popped out, they may then think that the door is broken and then seek another method of entry.

Dickcheney6, Jul 31 2009

[link]






       Bad ideas are crap and you're on laxatives.   

       This is only going to work on a very specific subset of burglars. Namely, absolutely freaking nobody.   

       I'm sorry, Dick, but this is laughable. Try again or just delete this anno for being too caustic.
daseva, Jul 31 2009
  

       I agree. It has been a long string.
WcW, Jul 31 2009
  

       I am sure burglars are not clever, and having more randomly weird setups will surely confound and confusticate them, and drive them off to burgle somewhere with a standard Yale barrel just to save their wee heads from hurting. [+]
pocmloc, Jul 31 2009
  

       "This is only going to work on a very specific subset of burglars. Namely, absolutely freaking nobody."   

       This pop out thing is on the INSIDE ONLY why the heck would it ever be on the outside? From the outside, the door would still be a NORMAL keyed-entry door. WHY ON EARTH WOULD A BURGLAR EVER THINK TO PUSH IN A KEYHOLE WHEN IT'S FLUSH WITH THE SURROUNDING SURFACE??? He/she would *not* be able to see any subtle differences in the lock when they're groping around on the other side to get in, and a window on the opposite wall would be way too far away to tell them if it's really a double sided lock or not.   

       "Bad ideas are crap" that is just about the stupidest thing I've ever heard. Who doesn't know that unless they've never heard the word "crap" before! (and i know your're just going to say that about my idea as well, dont bother because I'll just erase that- I did not do that with your first comment because erasing comments tends to be frowned upon here:)
Dickcheney6, Jul 31 2009
  

       Whoa. I've had worse ideas.
MaxwellBuchanan, Jul 31 2009
  

       OK, I didn't post them. But still....
MaxwellBuchanan, Jul 31 2009
  

       [pssst....daseva......Dick6's bun ratio is marginally higher than yours.....]
MaxwellBuchanan, Jul 31 2009
  

       Cute, Max. Listen, dick, I'm just giving you a hard time. I just don't think it would work very well, that's all. Max, when did you get the peacekeeper badge? It looks nice resting next to the calculator you didn't use to get that number... what do you call it.. A bun ratio? Do you mean bun:bone ratio? And is 'marginal' really something to whisper about? Don't you write scientific journals? Nobody cares about marginal differences. Besides, sometimes I like posting a bony idea. People seem to have fun with them. As long as there's more 'hmm' than 'zzz'. Anyways, you wouldn't know... You're too busy counting buns on that calculator.
daseva, Jul 31 2009
  

       Actually, it was a slide-rule that I didn't use. I find calculators far too inflexible in their interpretation.
MaxwellBuchanan, Jul 31 2009
  

       [normzone] (looks over his abacus, notched stick collection, and reticles, reaches for his dice and tossing coins).
normzone, Jul 31 2009
  

       [maxwellbuchanan] (digs out his Curta from behind the elephant-foot umbrella stand; pauses to wonder why he has an elephant-foot umbrella stand, but no elephant-foot umbrellas to put in it).
MaxwellBuchanan, Jul 31 2009
  

       [a dwarf] (appears, carrying an axe. It realises it is on the wrong website and hurries through a passageway leading east).
MaxwellBuchanan, Jul 31 2009
  

       I cannot figure out if these 2-key hole locks already exist, or if one would need to bring them into existence for a time to pull off this fakeout.   

       /and then seek another method of entry./   

       I propose a fake and easily opened door which opens into a fake interior containing cheap, shoddy and grease-stained goods as well as dead bugs and some dried dog poop. The burglar, obtaining access, would be put off and perhaps shamed by the obvious poverty within and leave empty handed.
bungston, Jul 31 2009
  

       So now we know how you protect your house, [bungs] - except in your case, it isn't a fake .....   

       [MB} we will offfer you USD $220 for the Unbrella stand, or swap for a very nice genuine Louis XIV black-and-white television in real simulated plastic effect.   

       [A Minbari] appears, carrying [a jewelled ear trumpet] full of [phasers], looks round worriedly, realises he is on the wrong website too, and hurries off after the [dwarf] though a [passageway leading East], pursued by [a tiny invisible black shape-changing space pixie].
8th of 7, Jul 31 2009
  

       Once upon a time, I lived by myself in a very shoddy, very crime ridden trailer park. I prevented break-ins by burning through a clip or two of .45 ACP on the front porch once a week.   

       Everyone there knew what would happen if they got caught in my house.   

       Most of the crack dealers also subscribed to this particular security system ... Fresh from my first deployment, it was almost nostalgic hearing my neighbors deter their more persistent "clients".
MikeD, Jul 31 2009
  

       I don't think this idea would fool any but the most desperate, least intelligent of thieves. Pocmloc, you're a moron and a patsy if you don't there are clever burglars. Just because somebody does something that's illegal doesn't mean they're uneducated. In fact, many of the most successful thieves and burglars are college educated. Apparently, you have no idea how hard it is to crack a safe using precise measurements of nitroglycerine (too little and it won't crack, too much you die) or hydrochloric acid, or disable a perimeter security system that has infrared motion sensors and invisible laser beams that trigger silent alarms.   

       Crime is not a task for the unintelligent. Those are the ones who get caught. It's a task for the brilliant, as evidenced by the fact that good ones are the ones who don't get caught and you never hear about in the news. You should watch the show "To Catch a Thief" sometime. Or even better, "Masterminds".   

       As to the idea, if the thief pushed in on the lock and it popped out, they'd probably figure out pretty quickly what it's for. Of course, for houses I've lived in, the narrow window alongside the door is on the other side from the lock, making it impossible to open by reaching through. In the house I currently live in, you'd have to have a reach of almost 4 feet to reach the lock through the window. I seems to me that the answer to your dilemma is as simple as sensible building design.
21 Quest, Jul 31 2009
  

       //Crime is not for the unintelligent//
to the contrary, the majority of criminals work darkside versions of "Do you want fries with that?".
  

       [Dc]'s mechanism may indeed fool the class of criminal that looks to break in to a run-of-the-mill house to grab a couple TV's and laptops.
FlyingToaster, Jul 31 2009
  

       //Max, when did you get the peacekeeper badge?// His dwarf stole it from my place when I left the fake lock undone.   

       Anyway, he's broadly right. Although a raccoon on laxatives is a step up from the famous 'You're a doodiehead', you were getting more personal than you needed to. Crush and mutilate the idea, if necessary, but not the poster.
pertinax, Jul 31 2009
  

       I have to agree that this isn't the worst idea. Double sided locks are common (and commonly referred to as suicide locks). My last house had them, and I left a key on the inside except when I was going to be gone for a while.
An alternative that looks similar, with a different function might be an additional deterrent. It probably wouldn't stop more intelligent criminals, but it would stop the idiot drug addict looking for a few bucks to feed their habit, which makes up a depressingly large proportion of home invasions.
MechE, Aug 02 2009
  

       "As to the idea, if the thief pushed in on the lock and it popped out, they'd probably figure out pretty quickly what it's for"   

       But WHY would they ever think to PUSH IN a key hole? When a door is locked do you push in the lock? I would think that if they thought it was a double sided lock they would attempt to just pick the outside part. Indeed, if they were attempting to pick the inside part something they would do in the process may cause it to pop out, but I highly doubt they would blindly try to jimmy an inside keyhole on the other side of the door when they could just pick it from the outside.   

       robber walks up to door, brakes window, and puts hand through to feel around on the inside of the door. Feels a key slot instead of a knob. Thief goes "oh it's one of those %*&#^% double sided locks!!!" and so tries to just pick the lock instead, or break through a big window and climb in. the sound of the shattering glass meanwhile may have drawn attention to the robber who is now outside the door trying to pick the lock.
Dickcheney6, Aug 02 2009
  

       One way one could do something like this would be to have a double sided lock but then put a key on a long, colored string, and tape it out of the reach of any window, but well within the reach of anyone on the inside of the house.
Dickcheney6, Aug 02 2009
  

       What happens if a burglar reads your post? What happens in 2 years when every other burglar knows this? This is security through obscurity. I have to vote [-] just from that standpoint.
ixnaum, Aug 02 2009
  

       [ixnaum] - I would have thought that obscurity was a valid method; if said crim has never seen a security system like yours before (be it mechanical, electrical, digital, whatever) then the likelyhood of them being able to break it is low.
neutrinos_shadow, Aug 02 2009
  

       [neutrinos_shadow] the first criminal won't be able to break it. But all it takes is one. One guy figures it out somehow, and this idea is useless within months - years.
ixnaum, Aug 02 2009
  

       I tried to calculate my bun ratio, but the answer keeps coming out as "A suffusion of yellow".
BunsenHoneydew, Aug 04 2009
  

       You're not a shitty raccoon, [Dickcheney6]. But the first five of yas can go jump off a bridge!   

       This idea reminds me of every time I play chess. Strategizing in the wrong directions, expecting precise actions from a vague opponent, etc etc.
daseva, Aug 04 2009
  

       I hate to get in the way of a nice flamewar, but has anyone considered the practicality of the device?   

       You're attempting "security through obscurity" -- a process where the suspect is unable to gain entry because he doesn't know how the lock works.   

       Most professional burglars keep abreast of new products.   

       Your product would quickly become well known, recognized from the outside, and lend itself to being sought out even more because of its "feature".
ericscottf, Aug 05 2009
  

       Worst case scenario, this is no more risky than a traditional inside handle dead-bolt. Next case, if it is manufactured to be identical to other dual key locks, the burglar needs to decide if they want to break the window on the chance it has a hidden internal handle.
This does therefore provide additional security over a handle dead-bolt, while providing more safety than a dual key dead- bolt, it is a trade off.
MechE, Aug 05 2009
  

       The most obvious solution here is a partition between the window and the door, to make such reaching impossible. That or some sort of biometric scanner.
21 Quest, Aug 05 2009
  

       "Your product would quickly become well known, recognized from the outside"   

       How would a normal keyhole on the OUTSIDE make it distinctive from a traditional dead bolt? For that matter, what on the outside would differentiate between a deadbolt with a handle on the inside and a double sided lock?   

       Unless you can closely examine the inside of the door from the outside, there's no way anyone would know from the outside. If there's a window opposite the door, it's doubtful one could see the SUBTLE cosmetic difference between a fake key hole and a real one from that distance.   

       One COULD however see a normal thumbturn style lock from a window opposite the door :)
Dickcheney6, Aug 28 2009
  
      
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