I saw the coneheads. I was too young to know about condoms or anything involving sex. I just thought that whenever the coneheads chewed the condom it would blow up that way.
A childhood belief about condoms

others believed things like this
- thanks to the movie "Coneheads" i thought bubble gum made condoms..— Coneheads is fake!!!
- When I was young and first learned about condoms, I thought that they were made of tin foil. OW!— Sarah
- when I was very young, I used to beleive that the leaves rustling in the trees made the wind blow— Ellona
- I used to think that everything involving the name Alice had to be Wonderland or Looking Glass related.Anon
- I used to think that if you didn't blow your nose and just sniffed the snot up, you head would blow up.Anon
- i used to believe that a blow job was when you got payed to blow up ballowns— blown away