Christopher L. Bennett

"Spock!" McCoy interrupted. "For someone who's supposedly learned to understand emotion, you still seem to have an inordinately hard time telling when you're irritating someone!"

Spock threw him an innocent look. "Since irritation is your normative state, Dr. McCoy, it can be difficult to distinguish the individual causes."

"Well, whenever you're around, Spock, there's no need to look very far." He harrumphed.