I'm saying they mutually escalated/contributed to it. What the fuck were they thinking? Someone 1/3 your age assaults you, you call the f-ing police.
These wannabe heroes tried to confront two thugs who had just assaulted them but left them alive and walked away. At that point, they put themselves in harms way of their own free will.
gets pushed to one side a little, but the old fart, being an old fart, loses his balance, falls and hits his head the same way?
It changes the nature of what happened. They weren't "victims" at that point. They were participants, who happened to lose the confrontation.