Knew a guy like that at work, but he wasn’t self-aware enough to realize it. He would take hours of one of our people. When someone finally said something to him, he got all bent out of shape about it, and would walk by with friends while making comments about “he’s not allowed to talk to <coworker> any more”.

Still, our coworker was better off, so overall it was a win. She didn’t really want to talk to him that much either.