Winstun
Don't discount the following.
In any bar room brawl, close in fighting, no matter your boxing skills one often comes out with a black eye.
So in Greg's case he was very lucky not to lose an eye as sharp implements involved!
In any bar room brawl, adrenaline usually takes over and you see red. Often making good calls in judgement difficult.
In Greg's case he took the fight back into the cabin and away from the flight deck. Taking strikes to the head as he did so.
So I would suggest he displayed a rare combination of good judgement and bravery.
He did well and deserves a pat on the back. No doubt the media will go overboard. So what in this case.
Conversely, a poor call of judgement or hesitation would invite media, legal and of course, management crucifiction.
A thin line the latter!
Nice bloke and am sure the usually tight techies will buy him a round on his next overnight.