GorT goes berserk, making little children cry.
As an aside, the whole incident reminds 'Puter of that absolutely disturbing CSI episode about PAFCon (plushies and furries convention, for those not in the know like The Volgi), wherein grown folks get in mascot costumes and engage in, well, adult behaviors.
And McGruff should know better than to be anywhere near a Metrobus driver. Metrobus drivers are notorious for all kinds of anti-social behavior, including routinely running over pedestrians.
*GorT, left works the new CHiPs sunglasses he got with his bar mitzvah money. They were out of glacier glasses and Members Only jackets.