By listening to Casey's music. I'd buy front-row tickets to his show and get killed in a stampede of die-hard groupies trying to get up on the stage to fuck him.
All jokes aside, a man actually did die at one of our gigs. What happened was that we were playing at a festival about 4 years ago in the UK, and the festival had lots of different sections, indoor and outdoor.
We were the headliner in one of the indoor sections, and when we got on stage, we saw that the place was literally rammed out. It was a 3,000 people capacity hall and there had to have been at least 3,500 people in there.
Turns out that there were another 1,000 people outside the hall trying to get inside, and the understaffed security (for some bizarre reason) LOCKED the fucking doors to stop more people trying to get in. After we got backstage after the set we found out that someone had died.
It still makes me sad when I recall it.