Why do cis men explain things that people already know?
I was talking with one about our pet cats, which led to a conversation about their reproduction. He suddenly begins telling me how cats have sex... I stopped him mid conversation and asked "why do cis men feel compelled to explain things that people already know?"
He said fuck you, yelled at me, then left. I don't experience this with many other gender identities, just them. And half the time they don't know why they do it.