A polite talk about alien races should go like this:
Martians can beat us at every ball game,
As well as at chess, poker and go,
Saturnians have the best ice cream in the Solar System,
Selenites are just an illusion,
Blah blah blah. But a xenophobe,
No doubt, would tell you that
Martian balls are made of some stinking fluff
And their brains look like purple jelly,
Saturnians get their milk out of liquid minerals,
And Selenites are the meanest bastards outside our atmosphere.
In truth, however, they all just grow mushrooms in their stomachs,
Raise fish in their blood vessels,
Listen to Radio Wonderbug now and then
And tamper with the military and the clergy for relaxation.