Brenda Brenda:
I don't see how it would make "bungee jumping look like a walk in the park", but ok. The idea is awesome, as will the suicide attempts be.
I wondered the same thing, if they locked the harnesses. However I've never heard of someone going sky diving and not opening the chute to kill themselves so maybe we just have warped minds to think that up.
As far as doing the walk, HELL YES!