The Pancake Incident
I grew up in Mexico. My school had a lot of exchange programs abroad, so in 9th grade, I went to Boston. I stayed with a guy from the HS and his dad. Pretty weird family. But the strangest thing was that his father told me that I could not flush pancakes in the toilet.
He literally meant pancakes. It was not a euphemism, because I asked his son about it and he said “Yeah, there was an incident once.” Story credit: Reddit / MantisToboggan14