You're an idiot then.
"Wife, clearly we're in a dangerous situation, so take the child and you two, unaccompanied and unprotected, make your way as best as you can to the car where you will then have no idea when and if I'll return and possibly not be able to contact me as I might get beaten to a pulp and/or arrested"
If you have a wife and kid your first responsibility is to protect your wife and kid and get them out of a dangerous situation as safely and quickly as possible. Trying to kick the dude's *** may be satisfying, but it's also ******* selfish.