He's messed up in the head sometimes, and gets depressed real easily.
He's got a stupid sense of humor, and I can make him laugh just by being an idiot.
Once I got him laughing so hard when he was on the phone with his (then) girlfriend Jessica, that she kept telling him to shut up or she was gonna hang up on him. It was funny. That's what you get when you're sleep deprived and acting like a dumbass.