A touching ode to an incompetent Oriental farmer:
Ching Chong Chinaman went to milk a cow
Ching Chong Chinaman didn't know how
Ching Chong Chinaman pulled the wrong tit
Ching Chong Chinaman covered in shit.
In retrospect it's hard to imagine what 'the wrong tit' could possibly mean, although I suppose it could be the cow's tail.

In a mood of slightly charming pre-dairy-produce-understanding i offer;
Ching Chong Chinaman tried to milk a cow,
Ching Chong Chinaman didn't know how,
Ching Chong Chinaman pulled the wrong udder,
Ching Chong Chinaman got covered in butter.

Following his unsuccessful foray in farming, CCC moved into retail management.
Ching chong chinaman bought a little shop,
and all he sold was peppermint rock.
He pissed in a bottle and he called it pop,
Ching chong chinaman bought a little shop.

Here's one we made up in primary school. I can't believe I remember it - it's over ten years ago!

Ching Chong Chinaman worked in a zoo,
Ching Chong Chinaman needed a poo.
Ching Chong Chinaman did it in a cage,
Ching Chong Chinaman lost his wage!

I have a suspicion that the \"wrong tit\" may in fact relate to our oriental friend not knowing the difference between a cow and a bull. Having selected a bull to milk he reaches under and yanks on the only thing he finds under there.... you get the idea.

BTW I had ample opportunity to ponder this in my first 5 or so years of school as I was fortunate enough to have considerate class mates, chant this to (at) me so that I as a half ching chong would not make the same mistake, should I ever have the opportunity to express from a bovine.