Fining these sorts of people doesn't work. I go clubbing on a semi regular basis and I see the same thing over and over again, people who think they are heroes get around in packs with their mates and flog people, glass them, stab them etc. These people do it because they know it's highly unlikely that anything will happen to them. I also KNOW people who go out for the soul purpose of flogging people with a group of mates so they have no risk of being picked on themselves.
If the cops had enough spine to flog these a-holes then PERHAPS they'd smarten up and it would happen less. I know a group of people that flogged a couple of guys because they were gay. They went to court and they walked away with nothing. These are the sort of people that need to be taught a lesson, giving them a night in lock up doesn't do ANYTHING.
I've got mates that have spent the night in lock up and they laugh about it (granted my mates haven't been put in lock up for gang bashing people, but if these guys can have a giggle about it what do you think a thug would think of the situation? It's just a place for them to sleep it off), I have people on FB that have pictures up of them abusing cops because they know the cops are virtually powerless.
You guys who think handing out fines or being escorted out of a place without any form of a touch up actually works obviously haven't seen the regularity that these repeat offenders commit these assaults and act like imbeciles. To the bloke that said he was a bouncer, how often are you confronted with a ridiculous amount of people challenging your authority? It would be quite a lot. I bet if you flogged a person who did so, he wouldn't be so keen to come back for round two. Eventually the word would get out that you aren't the bouncer to F with, and people would smarten up at the premises you work at.
My bro is a bouncer on the goldy and I have been to the joints he works at. NO one messes with him. Everyone comes up and shakes his hand or sucks up his ***, a lot of them have said to me "your brother is a machine, no one plays up around him" and similar things, some have told me how he's messed them up, but they deserved it and they have come up and apologised to him the next time they've been there. He commands respect and he gets it. Pretty easy to do when you're 6' 2" 110 kegs and done years of muay thai, lol.