It used to be that bungee jumping and skydiving were reserved for only the gutsiest of travelers. But these days, adventurous types are pushing the limits like never before.  The problem is, they sometimes end up pushing up daisies in the process, whether they’re trying to scratch off a bucket-list item or just succumbing to sheer stupidity. If you’re craving an adrenaline-surging brush with death on your next trip (and this article is NOT an endorsement), here are six experiences that can deliver.