My three brothers and I were raised Catholic in the 1950s and 60s, so any discussion remotely connected with "where did we come from" was met by my mother with panic. My youngest brother, aged five, the favourite and therefore hated by the rest of us, persisted; and getting nowhere he came to me, as I was the oldest, or perhaps just the loudest. I told him that Gypsies had left him with us, and further, told us that if he ever lied, we were to take him down to the lake and tie him to the tree there, and they would come and take him back. He panicked even more than Mother did, and didn't lie for years afterward.
A childhood belief about reproduction

others believed things like this
- my mother told me if i ever swallowed chewing gum i'd turn into a pig, i believed this for many years.— stuart hayward
- When i was young,my mother told me that she picked me up from the park. i believed it for a few years— Jennifer~
- My mother, the good Catholic, thought that Jesus, being a string bean (supreme being) was really skinny.— Mark D
- My mum told me that cold custard (which I hated) was in fact Banana Blancmange. I lapped it up for years.— Chalky
- My mother told me if I ate too much butter I'd get worms. I didn't eat too much butter...— Dicky
- My mother didn't want me outside at night so she told me i had to come in or else 'the night air would get me'— Dan