I'd call him an Adventurer!
And adventuring is a dangerous career that often results in massive death and/or physical taruama.
Seriously. Adventuring is the hieght of greed and stupidity. You go into dangerous places for glory and gold. It's like Survivor where the trees can strangle you and the island contains the tomb of a long-dead king willing to kill you.
Just because we glorify it doesn't make it extremely intelligent.
The kid is a sad case. He wasn't nessecarily a lot more stupid than average, maybe a bit more ballsy than average.
But it was the guy's own fault. HIS fault for being stupid and/or overly courageous. HIS fault for straddling the hole (shut up, Hong). HIS fault for ignoring the warnings of others. HIS fault for wanting to impress the chicks (it's kind of ironic...he probably wanted to show he was brave and worthy of being liked by the girls present, to pass on his genes in a sort of display. And he turned out dead. Like the antelope that won't give up and ends up gored to death by the bigger, stronger antelope. Plus, it illustrates that as much death and pain as Men stereotypically cause, a lot of it has it's roots in women. And I like it.

).
It Was His Fault, Lady.
That's all that needs to be driven home, here. His Fault. Not the state's. Not the world's. Not yours. His. He's 18 years old. The time for teaching him not to make a bridge out of himself over holes, even to impress a potential mate, has passed.
Get off your high horse and realize that just 'cuz he's dead doesn't mean it's not his fault. It's Disney's fault, this happens, really. No one can be a bad guy, so any pain in your life has to be the cause of the Bad Guys.
