This time, the taunt is enough to get him going again. He's still jumpy, and definitely missing the glee of fighting in a burning Chinese temple, but he's not going to let a taunt from Spike go without retaliation.
"Oh, you think so do you?" he asks, turning back to Spike with a tense grin and arched eyebrows, even as he comes in again with a brutal blow to the side of Spike's head.