Honestly just stay away from fights... If you do happen to get in a fight, stay away from their wild swinging early on aand perferable walk away.
I have been boxing since I was 14, wrestling since I was in 6th grade, and doing BJJ for 4 years... I have yet to use that in a fight, but have been in a few...
No shame in walking away, and no honor in kicking some random dudes ass.
Unless they get really anoying then
(its a joke)