Littlemans disease is a bad thing just as big outta shape fat guys throwing their weight around is. This entire episode was two big mouth dumb@sses in too small a space IMHO. No one deserves to die for such a reason but if ya get hit with what ya bring to a fight be it words, fist's or bullets......be prepaired and understand there is one winner and one loser and in most cases all parties are the losers in more ways than one.
Walk Away if at all possible, standing your ground any place other than your home is sheer insanity in this day of litigators and criminal animals.
If ya can't walk away and your life is in danger then get medevil mean and ........Stay Safe !
I haven't been in a fist fight in 20 years. If I had to then medevil mean is exactly what I'd be. I would go into it looking to kill the oponent by whatever means necessary, just on basic principle. I would also go in looking to take my punishment after the fact.