Robin Hood?
that's pretty awesome to do.
i remember there was this documentary on this guy who's like the best archer ever. he can shoot an arrow through a finger ring. and he even managed to split another arrow by shooting an arrow onto it as well. i forget who it is, but search for it if you want.
Mythbusters proved that you're unable to split an arrow from nock to tip with another arrow. No matter how accurate you are, even being shot from point blank, you can't split an arrow from nock to tip because traditional arrows have a piece of goat horn wedged in the back to strengthen the arrow.
Modern day arrows are designed not to split, but instead, bend.