Foot, Foot-Foot, and Foot-Foot-Foot

So Foot, Foot-Foot, and Foot-Foot-Foot grew up together and were the best of friends.
They did everything together until one day Foot took ill.
So Foot-Foot and Foot-Foot-Foot took Foot to the doctor.
The doctor examined Foot and then tells Foot-Foot and Foot-Foot-Foot the bad news that Foot doesn't have long to live, but to make him as comfortable as possible.
So Foot-Foot and Foot-Foot-Foot take Foot home and make him as comfortable as possible until one day Foot dies.
Foot-Foot and Foot-Foot-Foot mourn, but they go on with their lives until one day Foot-Foot becomes ill.
So Foot-Foot-Foot takes Foot-Foot to the same doctor that Foot-Foot and Foot-Foot-Foot took Foot to when Foot took ill.
The doctor examines Foot-Foot and tells Foot-Foot-Foot that unfortunately Foot-Foot has the same thing Foot had and doesn't have long to live, but that Foot-Foot-Foot should try to make him as comfortable as possible.
So Foot-Foot-Foot takes Foot-Foot home and tries to make him as comfortable as possible, but one day Foot-Foot passes away.
Foot-Foot-Foot is exceedingly sad, but manages to go on with his life until one day Foot-Foot-Foot becomes ill.
So Foot-Foot-Foot goes to the same doctor that Foot-Foot and Foot-Foot-Foot took Foot to and that Foot-Foot-Foot took Foot-Foot to when Foot and Foot-Foot took ill.
The doctor examines Foot-Foot-Foot and tells him the bad news that he doesn't have long and that he's going to die.
At that point Foot-Foot-Foot turns to the doctor and say "That's impossible, I've already got three feet in the grave"

*Note. This is my father's absolute all time favorite joke. He has spent years and years perfecting the telling. Its best told while speaking as fast as possible. I hope you enjoy it as much as he does.
EDITED due to requests for formatting... which was hard b/c really the joke is supposed to be told like one long run on sentence.