I used to believe that if you stuck your hands or head or anything out of the window of a car, a giant steam roller with sharp edges and knives and pointy things would come and chop your arm off. Only dogs could sense when one would come, so they wouldn't get their noses chopped off. I always screamed at my dad for keeping his arm out of the window.
A childhood belief about cars

others believed things like this
- I used to think that being fired meant they set you on fire.
Or they just chopped off your head.Anon - I used to picture God as a giant transparent poodle after seeing "All dogs go to heaven".Anon
- My mom used to tell us kids that if you put your arm out of the car window,that it would fall off.— Kathy G.
- When I was a child I thought that dogs can see ghosts but now I think that they can sense disaster— Steven Altamirano
- I used to believe that the moon lived on top of our house because I could always see it from the window.— Classic NYer
- When I was little I thought a widow was someone who stares at you through a windowAnon