Seems to me that if the bar has that much trouble keeping it's patrons under control then they should have more security on staff.

There are many clubs in the DC area that seem to constantly have fights breaking out inside, many leading to fatalities. The response by the City has been quite proper. They need to either increase security, stop serving alcohol, or close down.

The fact that you allow violent, law-breaking miscreants into a bar is not excuse for denying entrance to a law-abiding and honorable kilt-wearer.

Imagine the uproar if the doorman had refused entrance to someone wearing a minority ethnic outfit because they wanted to avoid a fight inside!