Where have you seen about him shooting himself? There's a report of throat injuried but I can find any more specifics. The grenades on that helicopter camera are those flash ones that temporarily stun.
I've seen no bother from the stewards near me, even when they saw people all around with the balloons. Most grief I had was a few games back when I had a can and the guy asked if I could get rid of it politely.
There's no way Richard Wood's getting to that. I've seen him and he definitely doesn't have pace that defies the laws of physics. Slack positioning by robo-Murphy there.
I think once he's in it doesn't matter if he's a fan, but that he doesn't have an emotional tie to the club makes everyone that little more anxious that he could understandably get bored of waiting around the longer it all goes on.