My experience at Busch in 2011 was actually the opposite. We were in pretty good seats on the third base side. My wife and I had gotten up to get some food. Yes, we left during a break in the action. After we got our food, we stood in the aisle above our section, so as not to interrupt people in the middle of the inning. We were in front of a wall, not in front of anyone's view. The usher said, "You folks need to go to your seats...you can't be standing around here." I looked at my wife, shrugged, and we made people stand up in the middle of the inning. Their rules, I guess.