When I was in primary school, probably about five or six, our PE teacher told our class that speed humps were little kids who had refused to do PE and who he had put there to punish them.
For the longest time I used to try and look down the ends of speed humps, looking for the kid!
A childhood belief about cars

others believed things like this
- My older brother told me that speed bumps were really dead people covered in cement.— Trina
- I thought that if you were speeding and hit a speed bump, it would cause your car to fly into the air.— SeñorChaCha
- When my wife was a kid, she used to think that highway speed bumps were for the blind.Anon
- I used to believe that speed bumps were dead bodies that had been paved over.— Natalie
- I always had to sleep with my feet under the covers or else speed racer would drive over them.Anon
- In primary school, a whole bunch of kids including me believed that watermelon seeds contained ants. — Caff