When I was young I was convinced by someone that if you took LSD you could "see" sound moving around the room and it was in different colours. For a long time afterwards I would wonder a) How I could make it happen without LSD (or any other drug) b) What it would look like (different sounds different colours? Soft waves or zigzaggy lines?) and c) Whenever I watched a program about drugs on TV that this was never mentioned.
I've never taken LSD, but I am assured by friends who have that this does not happen .....
A childhood belief about drugs

others believed things like this
- I thought drug stores sold drugs. I never understood how they could sell illegal drugs.— Diana Rios
- for some time I used to think that at a drug store people really sold drugs.— NEO_ryu
- i used to believe everyone saw different colours but just described the same.Anon
- When I was young I thought that police had soft skin, because this is how it sounds in French " Peau lisse "
— amine - I thought that the Chewit wrappers were different flavours as they were different colours like the sweets— Helen
- I used to believe that drug stores sold illegal drugs and I couldn't work out how they got away with it.— Bigg Jase