[One thing Brian has always had a knack for is spotting predators... but Spike doesn't really make it difficult. He's well aware that this is a dangerous situation; he isn't frightened, simply conscious of the danger, alert to his surroundings. It's a relief, since he's spent so much of the day trying to avoid aimless terror.]
I think I'll pass,
[he says flatly. He's got enough to deal with right now, he'd prefer not to fight, given a choice.