I used to believe the “spleen” was a joke. It had a funny name and I guess it was mentioned in cartoons for it, and I never read about it in my kids’ biology books so I assumed it wasn’t even real.
A childhood belief about general

others believed things like this
- I used to believe cartoons were real people and animals. They were just wet.— Wendy
- I used to believe cartoons where real people. You can imagine how that went... — Emma
- i USED To beleive that cartoons were real and i made them my imageniary friends!— Shaman Queen
- I thought cartoons were for kids and "real-life programs" for adults.— Ichigo
- I thought cartoons were real, I remember asking my mom why there were lines around the "actors" in a cartoon.— Steven Graziano
- ‘Unadulterated’ meant that something wasn’t rated 18+ and was therefore safe for kids— Evie