Appearently never. I was tempted to talk to him just to ask why he's always so tense. He's a BIG guy though, and I didn't want to risk having him really be pissed about something. I could probably take him if I had to, I just wasn't in the mood.
I looked all over his terminal trying to find Mikey, but I think he was alone. If he was in line at a bar I'd have bought him a shot, but I'm not about to buy a man coffee.