Today I saw a little worm A-wriggling on his belly. Perhaps he'd like to come inside And see what's on the telly.

(Genuine Milligan)

Back to the thread:

The leg falling off version is part of the 'She stood on the bridge at midnight' genre!

The boy stood on the burning deck A-gazing at the stars. A hot cinder went up his leg And burned him on his Mars...