From Dr Mac:
Back in grad school for my PhD I was asked to give a talk at a conference outside my area (my area is very interdisciplinary). I carefully considered the audience, created and delivered my talk, and walked around the conference for a bit before getting ready to leave. A man came up to me and I thought he might say something about my talk, since I’d just finished it and that’s usually why people come up to me at a conference. Instead he looked at me and said “Your hair.” I wasn’t sure I heard correctly, so I said “I’m sorry, what?” (with a big smile I now regret.) “Your hair,” he said. “You’d be so pretty if you’d just do something about your hair.” I was stopped in my tracks with no idea what to say and he walked off fast, I assume enjoying his hit and run.