Another thing you should do at concerts is take a cushion

Yes, my wife always does.

What I also find annoying is having booked front row of stacked seats, just before the concert starts there is suddenly a row of wheel chairs stuck right in front of you, without so much as a "would you mind". Fortunately the one in front of us when asked very kindly moved forward 12 inches or so.

This happened at Tunbridge Wells Assembly Room.
    very nearly disgusted of Tunbridge Wells,clearly in Tunbridge Wells, they still have respect for the upper classes,and recognise Bonzos blue blood and aristocratic demeanour, there is hope for civilisation