Ouch! I have a grand trunk that I've hit the ground in twice now. Once because I was using the steel hooks and had it hooked upside down. I just flopped in the hammock and was instantly on the ground.
Second time was about two weeks ago. There were two of us in the hammock and the rope broke right at the knot. Looked like someone cut it with a knife. What kind of knot did I tie? *shrugs* the wrong one...
I'm now using tree straps and a whoopie suspension from JacksRBetter. Shouldn't hit the ground again.