And to be quite honest, it isn't their business to tell people how to be considerate of others. I think it is their business to protect a person's right to watch a game. Much the same as making people sit in their designated seats instead of buying Terrace Reserved and moving down into Diamond Box seats. That's just my opinion though. It could be debated that having such a policy would alienate some fans. I am sure it would, but not insituting some policy will also alienate fans. If people's parents or parental figures couldn't the message of respect for other people's property or somebody else's home (Miller Park, neighbor, whatever) or just general respect for others, than I don't think a few signs are going to get it across either. I disagree. Several posters have mentioned similar poicies that were in effect in other stadiums and said that there were fewer people getting up in the middle of innings. One particular post mention that a similar policy was in effect and then repealed resulting in more people getting up during innings.