He felt the nudge of something else creeping into Spike's demeanor, the subtle hint of unease setting his teeth on edge. "I know you wouldn't hurt me," he said quietly, watching his own hand slide across the pale skin of Spike's chest. "Sometimes, though, right and wrong... up and down... bad and good... the line gets blurred. Their reactions to you - I don't get it. You'd think they were from a different world or something." He grinned and waited to see if Spike would react.