people who ask too many questions
people who somehow get by in a professional career by just greasing the wheels and weasling out of shyt
people who are always trying to tell you what to do in a certain situation, where they wouldn't have the balls or ovaries to do it themselves
people who gossip
Everyone is the centre of their own universe, I get that. Its the only way to be... but when others, mostly of the feline persuasion think that they are the centre of other peoples universe as well. That I can't abide by. You can be having a conversation about the perfect condiments to put on that bacteria infested sewer dog and they, somehow, manage to twist this and you've just made a commentary on them.
Lack of self awareness, those who don't see things from a different perspective, those with horrible communication skills.