Shitty people
Ever met someone that doesnt ever talk or joke around only sits their quiet until you say something wrong and he jumps in to correct you. "No, actually the contract was signed in 2008 not 2009... I figured you would know that but I guess not..." then goes back to being quiet. Whats wrong with these people. My wife's sister is the embodiment of this. What is the word to call them? I like to refer to them as prick or snooty. Sometimes I call her Ms Correction.
They always think they're better and smarter than others and seem to be in a shitty mood at all times.