Phones for sure. But getting up after every song or two to get drinks. If you want to drink that much at a show, buy tickets on the end of the row so you're not disturbing everyone else. The last time I saw Tool, I swear one guy in the middle of our row got up after every song. It was so bad, at intermission a guy 2 rows back yelled "this f'ing guy again". Then at the National, there was a constant stream of people getting drinks. Are you there to get hosed for booze or to watch a show?