I was talking to a lovely young lady and things seemed to be going really well.
Then she said "There's something I want to get out of the way right now," and she reached up and took a wig off her head, and it turned out she was as bald as a new-laid egg.
"Alopecia," she said. "It's a condition that causes hair to fall out."
"Oh," I said. "...Just on your head, or ...