Pretty much everywhere you look in Montana, if it's just a bar or tavern, without any food being prepared for patrons, there's more than likely a sign with the following, posted somewhere behind the bar:

"We reserve the right to refuse service to anyone." Noone tends to question these, at all.

Another one, perhaps more to the point for those rowdies wishing to carry their celebrations beyond the bounds of reason and fairness to others, are occasionally brought up short by the following brief missive:

"Behave, or begone."