James really is quite the perfectionist about these things. There have been a few guitar fuck ups on this tour that have caused him to gesture wildly to the side of the stage like that. On the THB anniversary tour in Southampton, Wayne and Naysmith didn't come in at the right time on one song and I remember James shouting "NOW!" at them. I still remember guitar drama at Glastonbury in 2003 as well; there were lots of screencaps of James throwing dirty looks to the side of the stage if I remember rightly. I really wouldn't want to get on the wrong side of him