I think everybody learns from their mistakes.

Maybe the guy that posted the most cruel thing here, maybe that guy has thought about it a lot... through the years... many thoughts... and maybe, because of such deep introspection, he now protects/help more than before... So those cruel things of the past have now helped create much more good than the harm they caused.

Or another option...

Is that the next guy that's gonna be cruel with cats, needs to take videos and pictures... document the entire thing. Then post a link.... so we all can learn...