When i was 7 my cousin told me that thelma from Scooby Doo was a mad serial killer.
A childhood belief about cartoons

others believed things like this
- I used to think that a serial killer was someone who would smash up serialAnon
- When I was little, I used to think that a serial killer was a killer who ate a lot of cereal.— believe
- I used to think i was a serial killer because i ate cereal!— Mikita Jones
- I used to think a serial killer was golden grams...— weird
- I used to belief that a serial killer popped out of a cereal box. — chelsea layman
- when i was little i thought a serial killer was someone who killed people for their cereal— emily