[As soon as the sword comes out, Murdoc is going to roll his eyes and sigh dramatically. Clearly there's something going around and clearly some are effected more than others.]

You know what? [He holds his hands up, so Dirk knows he's unarmed with no intention of attacking.] I have absolutely no idea. I suppose you just look like somebody I know.

[He does not feel like explaining the situation at all.] Tell me why you're calling me a troll.