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Door Defense

leaves a mark on the assailant
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Well, if someone is truly bent upon breaking your door, there isn't much you can do about it unless you happen to be home. But you could fortify the door so that even in its dying moments, it can leave a lasting mark on the door-breaker.

Most door breaking (from what I've seen in the movies, and it's more often a guy) takes one of two forms - (1) the guy kicks it hard right about where the deadbolt is, or, (2) the guy gives it a full shoulder right along the opening edge. Visualize how they do it, and we can form a plan to avenge the death of our beloved door.

Method (1). The legs open up and assume a certain posture which has an, er, awkward opening which will last through the breakthrough. (Boys will certainly remember from their schoolyards how awkward this posture can be.) The door too knows it. As it is getting splintered under the sudden pressure, an array of chiseled splinters springs off in that general direction. Ouch!

Method (2). The body contact usually at shoulder height and lasts through the breakage. Instead of giving in at the deadbolt, it gives in instead at a fault line just a few inches from the edge. It's not a straight fault line, nor does it rip slowly - it is jagged and springy, designed to quickly reach into the shoulder that's pushing the door with excessive force.

To demonstrate that you are not so callous, the door then calls an ambulance. Until the ambulance arrives, it reproduces the ambulance siren.

d, Oct 26 2006

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       Your door is ajury   

       I think this would be considered a booby-trap, illegal at least in my state. How about a door that instead defends itself before getting hit? I suppose even inanimate objects have the right to self-defense!?
wittyhoosier, Oct 26 2006
  

       Wicked [+]
skinflaps, Oct 26 2006
  

       Can you "reset" the door or do you have to buy a new one?
Chefboyrbored, Oct 26 2006
  

       Over here, many would consider it very un-American to reuse stuff. What will happen to Home Depot?   

       Quite probably the door would be too splintered to reuse. Besides, if the assailant ran away with some of the chisled things, it would diminish its, er, effectiveness.
d, Oct 27 2006
  

       //boobytrap//   

       ahem. Will a small warning sticker be sufficient? "Attempts to break this door may be injurious to your health."
d, Oct 27 2006
  

       What about the door-breaker that shoots out the lock, or hinges?   

       And what about non-lethal defense?
ye_river_xiv, Oct 27 2006
  

       //And what about non-lethal defense?//   

       Don't hit the door so hard and it won't kill you so hard, simple as that.
NotTheSharpestSpoon, Oct 27 2006
  

       Sounds similar to making a door containing nitroglycerin.
travbm, Oct 29 2015
  
      
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