Basicly how do you deal with people you don't like at work or similar suituations?

i interact with them as little as possible and beyond that all contact is non existent (example of hanging out with them after work etc)

if they continue to bother me beyond the work I am doing for them/working with them I am extremely cruel verbally and sarcasticly evil because simply put my concern is the job i am working with/for them on and nothing else so I prefer to not answer small talk and concentrate on the task at hand and then when I am home after the day a long stream of obscenities with the windows closed and door shut and locked so it can't be heard is how I deal with that situation

I ignore them as much as possible by avoiding eye contact and acting busy (even if I'm really not) when they are in my vicinity. If that doesn't work then I ridicule them or am mean to them so that they know to stay away from me. I don't LIKE being this way, but being cooped up with some of these people 40 hours a week, 50 weeks a year has made me calloused.