As a small child, I believed that a second set of arms would grow from one's 'underarm.' As I grew up and noticed that no one had two sets of arms, I was convinced that the second pair must grow very quickly and that first pair would fall off in my sleep and disappear.
A childhood belief about general

others believed things like this
- My mom told me that rain would help me grow... at a small 5'3" the reality set in quickly.Anon
- ... i used to believe the more stripes my pair of sneakers had, the faster i would run ...— wilbur
- I used to beleive that (like your teeth do) your lips would fall off so new ones could grow.— Queen Ohla Quads
- I used to believe that cars grew and that our car would grow to big to go under the McDonalds drive-thru.— Mary Ellen
- I used to believe people grew from spores and when we got old, we'd grow leaves and flowers etc— Calvin (from my pet tiger Hobbes)
- i thought that when it was your birthday you grow and then you didn't grow until a years time.— hello