For a long time when I was little I always thought my gym lady teacher was a guy dressed up as a woman. and one time she had a sack of marbles and showed it to us and I thought they were her (his) balls.
A childhood belief about teachers

others believed things like this
- I used to believe getting the sack involved being put into a cloth sack.— Wangchuk
- i always thought it was Grape Balls of Fire instead of Great Balls of Fire— Courtney
- At the age of about 5, I thought that any man carrying a bag/sack over his shoulder was a burglar.— Police officer, Ola.
- I thought the mole on my arm was from a bug pooping on my arm a long time agoAnon
- I thought Viagra was an allergy medicine for a really long time.Anon
- I thought for a long time that beaver and badger are the same animal— Ted Snow