I remember reading once about a woman who had learned to cook a roast by watching her mother. She sliced a bit off the end, then put it all in a roasting pan, etc. Years later her (by thewn) elderly mother asked her what she was doing, and with surprise, she explained. Her mother said, "I only did it that way because I had a small roasting pan and the meat didn't fit."

I have twin cousins who, as children, shared a bath, one twin always at the tap end and the other at the "good" end. That in itself scandalised my mother, but then, many years later, my Auntie Betty had to retrieve something from the bathroom while a twin was bathing. The grownup twin was sitting at the tap end.

I've considered both those stories for years. I think we learn things from people we trust that we accept without question. We can't question everything, and some people question more than others do. Regardless, we probably all have something we do or know or embody that is a Tap End.