Have you ever seen someone looking at you or people you were with and asked them what they were looking at?

I was out to dinner the other night with some coworkers, and one of them is a little slow and a little loud and I saw a lady at another table looking at him. I was tempted to ask her “what the f*** are you looking at?” When she saw me looking at her, she stopped looking at him.

Was there ever a time when you saw someone looking at you, or at someone you were with, and asked them “What the f*** are you looking at?”