You have to watch out of guys who look harmless.My brothers friend worked at as a Bouncer in bar.At the door they had 3or 4 bouncers all over 6'7'' 350 and bigger.They weren't the real threat.My brothers friend who won the open Golden gloves and also had about 27 yrs training in different martial arts used to just sit around in the bar he was about 5'11' 178lbs if real trouble broke out he would deal with it,not the big guys.BTW that was his side job his day job was CPA