A Chicagoan, a Mexican and an Iraqi are in a bar one night having a
beer. The Mexican drinks his beer and suddenly throws his glass in the air,
pulls out a gun and shoots the glass to pieces. He says "In Mexico our
glasses so cheap we don't need to drink from the same one twice"

The Iraqi [obviously impressed by this] drinks his beer, throws his glass
into the air, pulls out his gun and shoots the glass to pieces. He says
"In Iraq we have so much sand to make the glasses that we don't need to
drink out of the same glass twice, either"

The Native, cool as a cucumber, picks up his beer and drinks it,
throws his glass into the air, pulls out his gun and shoots the Mexican and
the Iraqi and says "In Chicago we have so many Mexicans and Iraqis that we
don't need to drink with the same ones twice.