@layman,
The same kinda thing happened to a homey of mine a few months back.
He was in a biker bar and was feelin up the Babe on the stool next to him (which she loved).
Three bikers thought they owned this Babe, so they sucker-punched him, then kicked him 30-40 times while he was on the ground. They thought he was finished, down and out, so they went to the bar to order drinks, laughing their ass off.
They under-estimated my homey's ability and willingness to retaliate. They didn't know he had a loaded 9 under his belt.
It wasn't loaded for long. They couldn't arrest those bikers for battery because...well, because they were all dead, ya know?