A word to the wise: do NOT mess with kittens.
Just take a look at the ikkle bundle of fluff in the video above, for example - who we think has more than earned the right to enter our Animals That Can Kick Your Ass hall of fame.
This clip may only be 10 seconds long - but trust us, it has suspense worthy of Hitchcock. Yay kitty!
(Via Tastefully Offensive)