A recent story describes a shooting involving over 90 shots from different handguns at a local swingers club. One killed and one wounded. The shooting was apparently started over an illegal dice game. There's an argument for high capacity in a defense weapon. That's a lot of shots being fired.
Though I understand alcohol is not served, presumably making carry legal inside, I would think most patrons that want to get around that just drink or take their drug of choice in the parking lot. This can only lead to bad results, particularly if gambling is involved.
It's fortunate that only one was killed in that sort of firefight. I have to assume those involved in the dice game had their clothes on and were able to run outside into the parking lot.