1. IT Guy
A person who works in a small closet setting up computers and answering help requests all day with at least 3 of the following 5 symptoms...

1 - Uses Linux
2 - Believes other employees exists to serve him, not the other way around
3 - Has told the cofee holder joke to friends/family
4 - Has unhealthy hatred of Microsoft
5 - Smug beyond belief

Typically straight of college. Often was a nerd in high school but not smart enough to major in engineering in college.

IT Guy - "Can you believe that manager just told me to install Vista? Seriously, who does he think he is?"