Here is another random thing he does that drives me insane: he eats a cheeseburger or and sandwich with the wrapper on until the very last bite. Let me explain; first he will bring in a bag of food around 4 in the afternoon. He has to eat his lunch/dinner in the office because, like I said before, he can't stand to be alone and nobody else at our company eats at 4 in the afternoon, so he won't go in the lunch room. So whatever crap food he is eating at the moment we have to smell for the next hour. He gets a sandwich and instead of taking it out of the wrapper like most normal people do, he folds down the sides to expose only a small amount of the sandwich. He takes giant bites, and makes sure to talk to anyone around him while he chews his food. At no point does the wrapper leave the sandwich, and at no point does his hands touch the food. It normally takes him about 10 minutes to finish a burger. And he also has to let everyone know how good it is; "mmm this sangwiech (as he says it) is mmmmm gooood" the dude is horrible.
Another thing he does is if he goes to Arby's he always has to get all 5 sandwiches for $5. He then eats one of them, then tries to sell the other 4 to other coworkers for a dollar. He doesn't even try to make a profit, and 85% of the time nobody wants one. So his reasoning is that he would rather only pay the net of $1 for his food, and take the chance of people buying the others, but he might have to throw the other 4 away.