My ideal is similar to that of the set up of a game i used to play called kingdom of camelot. you have a leader and then you where able to appoint people under yourself, I believe they where 3 slots under the leader, each had it's own set of allowances or privileges. the highest being able to do everything the leader could except remove the leader from his position. I found this worked very well and was useful in controlling what happened during the course of the day, because the leader did not have to be online 24/7 to still have a active happy guild. SO no i don't think anyone should be able to start a brawl, but I do think that a vise president or 2nd in command should be able too. and really MUST be able too, this is why so many guilds are restructuring and starting over, the GM goes to work and everyone gets bored.