When I was a kid I thought that there was no way that I could throw up while going "poop". In my mind, I was making much needed room for the vomit by pooping and would no longer "need" to throw up.
A childhood belief about being ill

others believed things like this
- I used to beleive that eggs were actually poop from chickens, and that eating it would make you throw up.Anon
- My brother used to be scared to poop in the potty. He thought that he was pooping out his bones.— Lillyth
- for years i was afraid to throw up because i thought it meant i was possessed like in the exorcist.Anon
- i used to believe that if you didnt fart that you would throw your guts upAnon
- I used to believe if I am naughty, a policeman would come get me and throw me to jail!— Melody
- i used to think the sun was a giant fireball like the ones from the mario brothers throw except a big one.— chris