Mark Twain wrote,
Heaven is by favor; if it were by merit your dog would go in and you would stay out. Of all the creatures ever made, [man] is the most detestable. Of the entire brood, he is the only one... that possesses malice. He is the only creature that inflicts pain for sport, knowing it to be pain (emphasis added).


It's a great quote, isn't it?
I can't watch that video. I don't know what it is, but by the looks of the still-photo, it's not pretty.
I emphasized "knowing it to be pain" because it truly highlights the moral depth of the quote.