Male who prefers to feed only when the object appears in some way helpless (e.g. - recently dumped from a long term relationship, intoxicated, or asleep).
Sally: Julie's boyfriend just told her he's seeing some other girl. Think she's coming out tonight.
Jane: Be prepared to fight off the guyotes, then. They can smell any breakup within a five mile radius, and I don't need to be taking her leftover shots of Jager all night.