... but when bungee-jumping, it is best to calculate the length of your rope very carefully. And then use just a little less.
A 22-year-old man was killed in Utah, swinging by a rope from Corona Arch. His rope was too long, he hit the ground and was dead on the scene.
Apparently, this a popular pastime, made more popular by YouTube videos. The authorities have put up a sign asking people not to do this obviously dangerous thing, but, as one representative says, "There’s no way on Earth you can tell someone not to climb a mountain."