I used to believe that "smoking pot" involved melting something in a large pot until it smoked; a smoking pot. That commercial with the egg and the "this is your brain on drugs" did not help clear up this confusion!
A childhood belief about drugs

others believed things like this
- When I was younger, I used to belive, that tile joints were a smoking drugs...— Anaëlle
- I thought that smoking pot involved an actual pot from the kitchen.— Aeris
- I used to believe that Marijuana was a disease you got from smoking.— LMH
- I used to think that smoking was good since it was banned in elevators.— olikafibi
- I used to believed that smoking would make me a cowboy.— Alberto Batista
- I used to think that my dad was "smoking pot" when he would smoke his pipe while sitting on the toilet. Anon