Imagine an ordinary worker picking up the most powerful/borderline legal air rifle on the market and shooting a random bloke for fun. The victim would "bleed profusely" and require medical treatment.
How long do you think the shooter would last before being disciplined and/or fired? Five minutes? A day? Two tops?
Well. Not if you're a Premier League football player and certainly not if you're name is Ashley Cole.
He wasn't even suspended for one poxy game. Apparently he said the word "sorry", so all is ok.
As this may set a legal precedent, see if you want to try it yourself. Shoot someone on the arse. Just for a lark. If the rozzers get involved just say that you're "sorry" and that was enough for Ashley Cole to get away with it.
Your case will be watertight.