phoenix didn't take the interview seriously.although the handshake did seem hostile to begin with. perhaps letterman's staff told him the guy was spaced out, and he decided to have some fun. DL seems to have a really big interview or 3 like this each year. He saw a chance and took it.
he's Coked out of his mind right here
real or not, thats some funny shit. letterman is awesome.actually i hope it was real...would make it more funny