[jonp]

"You can drop a mouse down a thousand-yard mine shaft; and, on arriving at the bottom, it gets a slight shock and walks away, provided that the ground is fairly soft. A rat is killed, a man is broken, a horse splashes" - JBS Haldane "On being the right size"

http://irl.cs.ucla.edu/papers/right-size.html

[mersault]

It wasn't the initial jump that concerned me, it was the ass over teakettle action all down the rocks at the bottom that concerned me.