Hide in a Room and hope he goes away! Heh
I think the fighting keys were the keypad, but they might also be like:
I'm probably wrong though.
I don't remember anyone asking that, so I think I was able to 'dodge' him. The more the dodging the better, because fighting is almost impossible to win. I mean, like once or twice is OK, but once your life is low, it IS imposible to win... I don't think anyone can go through beating every single guard, but that's just me.
Oh yeah, did you use the 'small key' to get the Brown Uniform downstairs (I think). That might work too.