Safety belt
A man is driving to work when he notices the flash of a traffic camera.
He figures that his picture had been taken for exceeding the limit, even though he knows that he wasn’t speeding. Just to be sure, he circles the block and passes the exact same spot, driving even slower this time through. Again, the camera flashes. He thinks it is hilarious, since he was obviously doing nothing wrong, so he drives even slower as he passes through the light for a third time. The traffic camera takes his photo again. He does it a fourth and fifth time and is hysterical each time when the camera flash snaps his picture. The final time he passes through the light he is going 20 miles under the speed limit.
Two weeks later, he gets five tickets in the mail for operating a car without a safety belt.