I just thought it was efficient that they already packed themselves in their own body bag... 
Had a friend in HS a looooong time ago that had a bad accident on one when they first came out. I've been too chicken to try it ever since.
I know a guy who had the wind die just as he launched. He really did a number on his knees when he (more or less) landed. He still can't walk fully normally. They're beautiful to watch, but ...
Of course, I probably shouldn't talk. I've taken a sailplane up. I think they're safer than a hang glider, but one is still at the mercy of the wind.
