I will gladly stand up for the entire time between half-innings, bullpen calls, etc., and let whomever in and out as many times as they want to go. Drink all the beers, visit all the friends, whatever. Just please, please don't make the people who are actually there to watch the game miss any of the action because you can't wait 15 minutes to get up. Most of them aren't trying to be jerks; they just don't know better. But I'm not sure they listen to anything on the PA, either, so who knows whether that would help.