I think, my dear friend, that you would not be good in a bar fight. It's like, someone paws your girl. Are you going to say, "Ordinarily I would not condone such behavior. However, because my girl is the height of foxiness, I can understand, and while not endorse, perhaps let slide, your behavior."
What you're supposed to do is nut him with your forehead. Then, if you're feeling really frisky, what you do is take a shot glass. Hold that bottom pressed against your palm. Then you jam it into the offending person's face. Glass breaks on impact, the dude has a flap of his face hanging off, blood everywhere. You're out the back door, dragging the chick with. She is shocked but she also appreciates it. Part of her does.