I had a similar playboy-wannabe working with me at a garage in the late 2000's. The guy was a human incarnation of a cancerous cell, spreading into a well functioning system to corrupt everyone.
Anyway, he was also some kind of a not-so-discret perv', and always talked badly of our female customers. Almost each time he had to reach me like, "Wow, look at this one right there!" Usually, I wasn't even looking, but on one day he said it again. I rose my head, looked at the woman, looked at him straight and said, "She's my mother." It was the truth. The creep never talked to me about women anymore for the remaining three weeks.