Have you ever had a really bad boss? What was your worst boss experience?

I had an old boss many years ago that would slap us on the asses in team huddles and play it off like it's okay because he used to play football in college. He was predatory and one time cornered me in the copy room and said that we should party together. I told him no thanks I am married and he said so am I that's not going to stop me. He went on to harass just about every woman in the office and took an act of congress to get him out the door. Who the F picks out these losers for management? Is it on the resume must be a douche bag?