"Oh, sorry!" The words burst out of Chaz before he could stop them. Demons didn't apologise, he reminded himself time and time again. Demons never showed remorse, except maybe to other, superior demons for whatever evil assignment they had recently buggered up. But other than that, demons didn't apologise. And they certainly didn't to the mortal souls they were supposed to be corrupting.
(Because Chazaqiel, as it happened, was the kind of person who tended to remain entirely oblivious to suspicious goings-on like cheating wives or, say, an immortal presence hovering at the fringe of a party.)
He told himself all this, but when push came to shove... well, he'd think, you'd have to agree that he was partially to blame and in all fairness... and then before he knew it, he was apologising again.
"I didn't mean to startle you. I'm- that's right, I'm from WNPZ. Charlie Applecross." After a bit of fumbling with his glass he offered out a hand, continuing as he did so, "You can call me Chaz if you like, everyone else does."