I don;t know about you..but my friends would never let a guy who is much bigger than me, or no matter what size beat the hell out of me. Back in my bar days I witnessed a friend of mine defend another against a guy twice his size and it was a close fight. Size doesn't always matter. Look at Tye Domi from the Maple leafs...he is not a big guy. I am thinking if that guy saw the first one coming, it might have been a different story.
Then again, there are more people carrying guns and anything can happen.