I could have sworn we saw him in briefs once. Then again, hiddenw's 'going commando' theory works for me, too. ;)

I don't know if he'd actually fantasize such a thing, but I do think he's someone who'd hop on board a train of thought and ride it til the end of the line, without having a clue where it's going, and yet not be particularly surprised when he got to the final station.

Er, or something.