He finally looked back at Bruce, and tried to smile. He was sure it was a failed attempt, but at least he had tried. Right?
"Yeah. I'll do that. So long as you don't plan on pop quizzing me, or something." His mouth twitched with more believable amusement than his attempted smile.
As Bruce pulled away from him and turned to leave, he reached out and grabbed the older man's hand for just a minute. "Bruce, I..."