Billy Connolly's "Country and Western Supersong." It really does have to be sung (or half-spoken) by Billy!

Yes, my granny is a cripple in Nashville, friends.
This story I tell you is true.
One day she went out on her wheelchair
Never knowing it had a loose screw.
Well, a wheel came off of that wheelchair, friends,
And on three wheels it trundled away,
And it trundled right over the edge of a cliff
In an old seaside town far away.

(Country and Western noises)

Now, the boy who was pushing the wheelchair
Was a little blind orphan called Joe,
And he said, "Oh, where is my granny,
And where did that damn wheelchair go?"
Well, he ran off to search for that wheelchair, friends,
But his sightless eyes led him astray,
And he ran right over the edge of the cliff
In that old seaside town far away.

(Country and Western noises)

Well, somebody sent for a doctor,
And an ambulance too, it was called,
And the people who lived in the neighbourhood
Stood around and they cried; how they bawled!
Well, the doctor and the ambulance came rushing, friends.
They were rushing from two different ways,
And they crashed with a BIFF and shot over the cliff
In that old seaside town far away.

(Country and Western noises)

Well, they sent for brave Father Maloney
To pray for the poor souls' repose,
And he said, "Well, now that we're gathered here, good people,
We might as well pray I suppose."
But too many people had gathered,
And the edge of the cliff gave way,
And they dropped with a yell and they all shot straight to hell
In that old seaside town far away.

(Country and Western noises)