By Tim Hanlon A mass brawl broke out at an exclusive rooftop bar in Australia with more than a dozen people filmed punching and kicking. At least one man was taken to hospital after the violent scenes in the Pool Club at Sydney’s Merivale Ivy Precinct on Sunday night. Images show punches first exchanged by a group of men and before long, around 12 were involved in the melee by the pool. In the packed area some people could also be seen trying to pull brawlers apart while a person could also be heard shouting “fight’s on”. A separate clip shows people who were pushing and kicking a man who mana…