Tim was, at first, glad for the end of that line of questioning, even if he didn't have particular reason to hide the information. However, that only last for a second-- because that was when Tim lost his composure for a brief moment, something he rarely let happen. He fought to regain his regular straight face right away.

He didn't really remember making that joke very well. Oh god had he really said that?

"I-- well." Tim choked for a second, then said, "Can't market things with 'bat' in the name, you know. Bad for PR." Okay, that was a dumb explanation, but Tim was a bit flustered right then.