I think I know who that old guy is. If the video is as old as it looks, the old guy's name is actually Buck (can't remember his last name), and what he's doing is a rather archaic sort of dance called "buck dancing" (appropriate, no?). Really backwoods people, usually off in the mountains of Appalachia, came up with it.

I remember seeing Buck getting down at a couple of bluegrass music shows I remember going to, when I was a little kid. The old guy in the video looks exactly like him.

Anyhow, that made me lol. Good stuff.

looks like the beginning of the cripwalk lol.