A childhood belief about dangerous food

I was also told that it was "death" to eat fish and to drink milk at the same time. Does anyone know the origin of this myth?

Additionally, when I was small, (about three years old), my mother would pick all of the bones out of my fish -- no filets then. She never said ainything, but I assumed that a fishbone in your mouth = instant death.

I have been and will always be psycho.