TOD:
Manipulators -- (just tell me what you want, and I'll tell you if I want to do it or not)
Stupid drivers -- (i.e. -- slow drivers, dangerous drivers, idiot drivers)
Buttinskis -- (people who cut in line -- well, in general, people who think they are entitled -- divas)
Unreliables -- (people who don't keep their word/won't do what they tell you they will do)
When working at the theatre:
Divas!
Mess Pots (folks who don't leave things as they find them -- leave a mess for you to clean up)
Folks who move, play with, or take (steal) other folks' props/costumes (especially after you tell them your golden rule is "don't mess with other people's stuff")