I just thought of someone else.
I have no idea what his name is, but there's this guy at school who is obviously obsessed with his girlfriend and has no respect for anyone's space. He's kind of oddly shaped. He has very short legs, muscular arms, and ears that are perpendicular to his head (not the point). From what I've seen, he never associates with anybody other than his girlfriend. Seriously, I've never even seen him talk to anybody even after noticing him last August.
So, when I wait for the second shift bus in the cafeteria, him and his girlfriend will sometimes end up sitting at the same table as me because not many people sit there. He usually carries his girlfriend's several large textbooks and SLAMS them down on the table. No apparent reason; I guess he just likes the noise it makes. A couple weeks ago, I was just sitting minding my own business with a couple folders out on the table. Instead of moving down the ~15 or so other seats at the table, he chooses to sit directly in front of me and kind of brushes my stuff towards me before slamming down his books again.
I don't know if he is just clueless, a jerk, socially inept, or a mixture of any.