Mark's description of what happened at my office is flattering, but inaccurate. I'm very grateful he was there though. What really happened (as far as I can remember) is that the client, who had been suspected of surfing porn on our computers-which led to many porn pop-ups coming up on our computers at random times, including once while I was helping another client find information on a school (very graphic pics, I was mortified), anyway, the client came into the office and I told him he needed to leave as he had abused his membership privledges and was no longer allowed to use our computers. I based the decision to eject him on the proven fact that he had recently been rearranging our office equipment when we weren't looking even though he had been expressly told not to do that.
Long story short I told him to leave and he refused for a seemingly long time, he lingered for atleast 15 minutes, continually interrupting a session I was having with another client and basically really upsetting me. He's a freak, with a long history at our office of being socially inappropriate (i.e. interrupting sessions with other clients, continually asking the same questions, basically being an ass). I'm really hoping he doesn't come back, but I wouldn't be surprised if he shows up again.
Also for clarification I didn't tell the other student that Mechanical Engineering and Criminology would be an "odd" major, I said "unusual" and difficult due to the course load in most Engineering programs. I did make the McGyver comment though when asked what you could do with the combined degrees.