I used to think that pressing that "Diet" button in a soft drink cup somehow turned it into a diet soda.
A childhood belief about drinks

others believed things like this
- I used to think that if you mixed a diet drink with a regular drink, it would explode. Anon
- I used to believe that my dogs diet was clothes, because that was all I ever saw him eating— kay
- My dad used to tell me that "smoked" bacon came from pigs that had been fed on a diet of kippers !!!— Tony . Newcastle on Tyne
- I thought that soda was also called "pop" because if you drink too much of it, you'd explodeAnon
- i used to think that at night all of my teachers turned into my soft toys so they could keep and eye on me.— paranoid
- I thought there was a legal drinking age for soda (I had always been told that soda was not for children).— Dial Zero