my dad used to tell me that if you pointed at things, you were poking holes in the air and the fairies/birds would trip over them.
i'm still hesitant to poke holes..
A childhood belief about physics

others believed things like this
- I believed that fairies lived in lamp posts - their front doors were the little holes where the key fits.— Janice
- I use to believe I had holes in my bum cheeks for my farts to come out— jackL
- when i was little i believed that leprecauns put the holes in crumpets.Anon
- I used to think that the moon and stars were holes in the sky that you could see heaven through.Anon
- i believed that the holes in swiss cheese were cow farts.— lily
- I used to believe that if you point at somebody you make holes in the air and the fairys fall over— Bob #1