The other reason for a man to use ladies restroom is to help his small daughter use it.

I can't believe I have to explain this...

I didn't say there was no reason a man should go into a ladies room. I said that it's easy to imagine a situation in which a man entering a ladies room would very definitely be sexual harassment. Like, you know, chasing after a specific woman.

Given that this whole thread started with you nitpicking my example, I don't think you get to complain when someone nitpicks your example.