I remember when people would start to duel in the middle of Kada's interrupting nearby RPs and breaking settings all in one shot. it's been my experience in RPing abroad that many games have the same problem and it gives the same impression. The impression is that tavern fights are crude to bad RP and that no one reputable would or should get caught up in one.
However, I've been thinking and I've revised my view. Obviously there is some appeal to having a fight break out in a bar, otherwise it wouldn't come up. In some cases, it may even be justified by settings. So what's the problem? It looks like the real issues is a lack of consideration on the part of the people RPing in and around the brawl.
To me, this means there is a way to bridge the gap and compromise. We can give everyone what they want. I present to you the Tavern Brawl Agreement!
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The Tavern Brawl Agreement
- Both brawlers and potential spectators will attempt to respect each other and RP side by side peaceful. Mutual respect should be shown for the other group's RP.
- Spectators will react ICly instead of trying to end the RP OOCly as long as the brawl stays within settings and does not attempt to godmod anyone into unwillingly participate in the brawl.
- Brawlers will make an effort to keep the brawl within IC bounds. This means no prolonged fighting in taverns with strict anti fight rules or high security. No weapon fights in taverns where you can throw a punch but you can't carry a weapon openly on the street, and no killing in bars located in the middle of major cities.
- Brawlers will also take care to check OOCly with surrounding/nearby RPers to make sure that their fight won't completely destroy someone else's RP.
- Brawlers will have an IC reason for starting the fight, as in something other than I was OOCly bored.
- Everyone will respect the settings designated authorities, such as the guards, should they intervene.
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I think this covers most of the difficulties that arise with most tavern brawls and could let the game have it's cake and eat it to. Imagine if Brado's actually had the fist fights that it's said to have according to settings.

What do you think? Are there other concerns you have about it that I didn't address?