When you open a fresh can of soda the carbonation rises out in a steam-like gas. I asked my mom what it was and she must have said it was the carbonation, but I went on for the rest of my life thinking the caffine was coming out of it. (this was cleared up last week.)
My mom and dad didn't want me to drink caffine pop so I would try to suck it out (with my mouth) when it rose up so there wouldn't be any left in the can and, therefore, I wouldn't be drinking it.
I just ignored the "caffine" that rose out of the caffine-free popcans, as that defied my theory.
A childhood belief about drinks

others believed things like this
- I thought there was a legal drinking age for soda (I had always been told that soda was not for children).— Dial Zero
- that car headlamps were eyes. the ones that rose up really freaked me out!Anon
- I used to believe that Sheri Lewis from the show Lambchop was my Auntie Rose. the look so much a like!— Nirveli
- I thought that soda was also called "pop" because if you drink too much of it, you'd explodeAnon
- I used to belive that if you didn't keep a promise you would have bad luck for the rest of your life— Rebbecca
- I always thought there was a drinking age for coffee, because it was an adult drink like beer and wine.Anon