Thread drift warning:

Little Willie in the best of sashes
Fell in the fire and was burned to ashes
By and by the room grew chilly
But no one wants to poke up Willie

Alas for little Willie
We'll see him now no more
For what he thought was H₂O
Was H₂SO₄

and many more ....

Very popular among pre-adolescent kids in the early 1950s, many of whom had a favorite "little Willie" that came up unpredictably in childish chatter.

John