For some reason seeing Clark smiling at the moment gave Bruce pause. Or maybe it was the 'joke' that might or might not have been, but either way he stopped and studied Clark. He looked at him intensely, and in a way that was blatantly assessing.

Whatever he saw seemed to be good enough.

"Unfortunately for you, I have enough work to get done that I may actually be too distracted to keep a steady rhythm for you." He didn't. He was a hell of a multi-tasker.

And control freak.