Humiliated Superhero, gutpunched on a full bladder

Superhero lands to save the day but this villain is too much for him to handle, beats him up and he doesn't care that the Superhero says repletely that his bladder is full and he will pee himself if he keeps punching his gut, and after a few hard consecutive blows he can't take it anymore and releases on himself acknowledging that this is the biggest humiliation he ever suffered.