There's an episode of "Bear in the Big Blue House", where Bear says that you should go to the bathroom even if you're in the middle of doing something.
I took that a bit too literally, and thought that it meant that if you were in the middle of doing something, you *had* to go to the bathroom.
So, whenever I set out to do something, I'd pause and go to the bathroom whenever I was halfway through, regardless of whether nature was actually calling.
A childhood belief about weeing and pooing

others believed things like this
- when I was little my uncle told me he was part bear. I believed people could be part bear until I was twelve. — Audrey
- That blue cheese was made by scraping mould off bathroom walls. My mother actually told me that.— sandee
- I used to think that tampons were meant to absorb women's urine so they wouldn't have to go to the bathroom.— Koyaanisqatsi
- I used to talk with my teddy bear and I really thought he answered me.— Joy
- When I was little, I thought it was harmful to eat while you were going to the bathroom. Anon
- The song 'there's a bad moon out to night.' i thought they were saying 'there's a bathroom on the right.'— kim in alabama