A spaceship lands on Mars, and the astronauts are getting ready to go out when they look out the window and see something really weird.

Radioing Earth they yell: Houston, weve got a problem, theres a bunch of fully-bearded green Martians wearing black clothes, sidecurls and hats out there.

Go out and make contact, find more about them, was the reply.

So they did, and when they approached the group one of the astronauts asked: Do you all dress like that?

Oh, not at all, reply the Martians, Only the orthodox ones!