My worst bosses (I had about 20):
Italian woman - she took the cake
Indian man - Tennessee, claimed an MS in ChemEng, I saw no evidence of such
Man - Ohio State, conniving and dumb
Man - Ohio State, I really don't think he could read
Man - Harvard, he wasn't that bad, just completely useless, later got promoted to sinecure
Best was two, man from Ohio State and another guy from Liverpool of all places.
I had some bad VPs as well but I tried to stay under their radar.