Dropkick Murphys' in bloody brawl with fan during St. Paddy's Show

Now this is what St. Paddy's Day is all about! The bass player from The Dropkick Murphy's gets bloodied up in a donnybrook with a fan at at St. Paddy's day weekend show in Boston. According to reports, Ken Casey handed the mic to fan and he refused to give it back so Casey jumped into the crowd and got into a fight with the mic thief. Singer Aron Barr was unfazed and said the incident was nothing new. He pretty much said this is our house and you don't disrespect us in our house.