Half a croissant, on a plate, with a sign in front of it saying '50c'
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Traffic light teaser

It knows if you've been good or bad
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The traffic light is linked to whatever police national computer locally applies; if your record shows impeccable conduct, you will get more green lights than if you drive like you're at Nascar. If you get impatient and jump a light, the next light to sense your approach will sit at red for ever-extending periods of time. Repeated offences may well result in your receiving a little locally-applied remedial coaching at the hands of irate drivers stuck behind you, who know you're the cause of the pause.
Phrontistery, Jul 21 2012

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       I thought maybe you were going to talk about turning the light from red to yellow, and then back to red, skipping green entirely.
Vernon, Jul 21 2012
  

       Good one. Light punishment.
AusCan531, Jul 22 2012
  

       Or turning the light from red to green but only for 0.5 second, then back to red, tricking one into accelerating into a red light.
sqeaketh the wheel, Jul 22 2012
  

       They actually have a version of this in some cities. I've seen roads that were long, straight, and flat but had a 40 mph speed limit. As an incentive, as long as you kept your speed under 40, the lights would remain green for the entire 15 mile trip. If you went any faster, the lights would turn red and you would get stopped at every light until you kept your speed at 40.
Jscotty, Jul 22 2012
  

       The lights on Geary Blvd in S.F. used to be set to give a 28 MPH "rolling green".
8th of 7, Jul 22 2012
  
      
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