For a moment, Callaghan half-closes his eyes, not quite sighing as Krei gets mouthy. The next he step-turns, brings up his forearm, and slams it in to the other man with enough force to drive him against the wall of the building. He leans in close, baring his teeth in an outright savage expression, one that's only so different than the one he wore when revealing himself at Krei Tech.

"Just because I'm not in a mood to kill you doesn't mean the thought of smashing your face isn't as appealing as it's ever been, Alistair. And I don't have to worry about tenure anymore."

The curl of his lip punctuates the threat; he has little, if anything, to hold him back.

"Let me make this clear to you; your concerns here are staying out of trouble, and staying out of my way. If I have to track you down after this for whatever reason, I'm going to be very upset. Understand?"