[Gordon Booth]

Originally Posted by Guinness

Doubtful we'll ever know the reason, but here's the mentality of why it does happen.

Machine Gun Shoot

and here's a chilling picture from this years show

Machine Gun Expo Is Down-Home Americana Gone Ballistic | Raw File | Wired.com

Hey, Guinness, that looks great fun-don't knock it 'till you've tried it!
And it did say 'No alcohol permitted'.