If you've never just sat on youtube searching for "ninja" videos, then you've never ran out of internet before like Luke and I do. Anyway, this video is sweet, mostly because of the soundtrack, this is probably my favorite Rise Against song.
If you wanna know where you learn this stuff, it's pretty obvious... Ninja School (not the movie, whatever it's called).
And please, if you go, STAY IN SCHOOL! Don't end up like this poor excuse for a ninja.
[Emergency EDIT] Holy crap, the "afro ninja" clip turns out to come from a much bigger clip filled with tons of ninja school dropouts. Patent pending on that band name.
Eat it Chris.