Gran'pa had an old grey mule, his name was Simon Slick,
Longest ears you ever did see and how that mule could kick,
Went to fetch that mule one mornin' and he met me at the door with a smile,
Wagged one ear an' he winked his eye an' he kicked me half a mile!

WHOA MULE, Whoa mule I say,
Whoa mule, you scowlin' beast, you can't get away.

That's how I recall it anyways.
He included my favourite verse to any song, ever,

Mosquito fly high, Mosquito fly low,
If I get my foot on your neck you won't fly high no mo'

FC