The only thing that would make this video better? If it had the 'Rocky' theme playing.
Still, it's pretty delightful - and strangely mesmerising - all the same. Because it shows a cat using a cardboard box as a punchbag. Literally.
So when you think about it, he really is doing boxing training. Geddit?!
Of course, this isn't the first time YouTube has captured an animal behaving like a human. Not by a long shot...
(Via Tastefully Offensive)