Not a hallmark of typical Harbaugh session

Comedy Central won't be booking San Francisco 49ers coach Jim Harbaugh for one of its celebrity roasts, but Harbaugh did demonstrate a capacity for humor during his news conference Wednesday.

Harbaugh, mindful of his sometimes testy rivalry with Seattle Seahawks coach Pete Carroll, lightened the mood when a reporter covering the 49ers asked him to identify "hallmarks" of a Carroll-coached team.

"I don't remember getting any cards from him for the holidays," Harbaugh replied.

Hallmarks. Cards. Get it?

Again, Comedy Central isn't on the other line, but I found this unsolicited public levity from Harbaugh to be a refreshing departure from more diabolical alternatives. More, please.