When I in kindergarten, teacher once said, "Raise your hand if you know the answer." Having never heard the phrase "raise your hand", I thought she said "raze your hand" - "raze" as in "razor"! So I started miming an electric razor shaving the palm of my hand! Everyone laughed and I was so embarrased!
A childhood belief about classes

others believed things like this
- I used to think that my right hand wasn't my right hand anymore if I turned around.— Mike
- My teacher held out a hand to say, "stop" but I thought she wanted a high-five.Anon
- I thought second-hand smoke was bought off eBayAnon
- I thought that the word Copyright was like copying your right hand on the copier.Anon
- I thought the big hand was for the hour and the smaller one was for the minutes until i was in third grade.— Time Challenged
- I used to believe that I could actually cut the clouds with my hand.Anon