"My own body is a specialty of mine as well," he snipes back, aware that fighting is probably not the best thing they could be doing right now. He hurts, though, and can't really stop the snapping; besides, stumbling out of a dark mood and landing in a fever doesn't really leave one in the best moods for socialization.

"Fine," he relents after a moment, sighing heavily, and he takes a long drag. "If it will make you be quiet." He gives Watson a very small, teasing smile.