[X] Shout at him that you are supposed to split the loot, he'll probably get a kick out of that (Charisma+Empathy Base DC 6)
-[X] Leave the head, would you? I might need a new mantlepiece
[X] A deal's a deal, even with a monster, let him eat
-[X] While he's eating, target any vampires that are trying to get at civilians; if they're running away, instead focus on getting the civilians to safety.