Yes... most of them are appalling, but the few good ones are real diamonds in the rough.
My favourite (cat) fail video: www.youtube.com/watch?v=g85wBkhFhjo
(I know, it's not exactly the same thing, but there is something so compellingly inevitable about the outcome)
(eViLegion Chief Commissioner of the Scottish Lunacy Board, Tue 28 Jan 2014, 17:26, 1 reply)

Ah yes, the patented 'supercat' fail
Amazing how few of them accurately gauge the traction of their rear paws.
And (slightly unrelated) how when a harness is put on a cat, the cat just gives up.
(Rollerbone The sauciest opossum, Tue 28 Jan 2014, 17:31, closed)

I didn't know that about harnessed cats.
Is it something to do with that scruff of the neck thing, where they go limp so their mothers can carry them?
(eViLegion Chief Commissioner of the Scottish Lunacy Board, Tue 28 Jan 2014, 17:35, closed)