This is one of my daughter's - hope you like it ...
The white man said, "Coloured people are not allowed here."
The black man turned around and stood up. He then said "Listen Sir ... when I was born I was black, when I grew up I was black, when I'm sick I'm black, when I go in the sun I'm black, when I'm cold I'm black, when I die I'll be black. But you sir, when you're born you're pink, when you grow up you're white, when you're sick you're green, when you go in the sun you turn red, when you're cold you turn blue, and when you die you turn purple. And you have the nerve to call me coloured?"
The black man then sat back down and the white man walked away.