I'm disappointed in you Mick. Normally you cover everything but you missed the fave of lame fighters. Get your mate to goad an opponent while you sneak around behind him. If your mate gets knocked back, come in with the sucker punch. You and your mate can then claim you beat the out of a big mouth, the victim gets some pride as he was only beaten by a sucker punch.
This has been perfectly utilised by the rather talent limited "punk" band:
Towers of London