Okay, here's a scenario that occurred to me in a dream last night. I woke up before having to reach a decision, so I honestly don't know what I'd do. I was certainly considering drawing.
You and your wife are enjoying dinner in a good restaurant. Like many of them, there's a bar off to one side. Your wife excuses herself to go to the restroom, which takes her past the bar. You hear a commotion and your wife's voice, and rush up to see what the issue is.
A guy, apparently somewhat drunk, is holding on to your wife's arm very tightly (it's hurting her) and has drug her over to the bar. Your wife is hitting him feebly and telling him to let go. The guy has a friend next to him, who seems to be enjoying the spectacle and definitely not helping your wife. You give your best command language to the guy to let go of your wife. He says no, that she's pretty and "he just wants to talk to her and you should butt out". At this point the guy's friend stands up and takes one step forward to make his presense more known.
You're packing your usual, IWB. You have no pepper spray or a tac light or anything less lethal on you. You're in WA state like me, where carry in the restaurant is OK but you're already illegal having taken a few steps past the "21-and-over only" sign to rescue your wife and confront the guy.
What do you do?