Chase Field takes the "seat patrol" duties way too serious imo. Buddy of mine came down to visit me in a nearly empty section during the Brewers series and within 2 minutes the "seat police" were on the scene kicking him out of the area, yet people stand and have conversations during plays or get up in the middle of an at bat, yet none of the ushers bat an eye about that. Dont cheer too loudly for your team there either, they frown upon that (was escorted out last year over that, wasnt even being profane)