A Nigerian, a Mozambican and a South African are sitting in a South
African pub having a pint of beer. The Nigerian grabs his beer, downs
it, throws his glass into the air, draws a handgun and shoots the glass in mid-air. He grins at the other two, puts the gun down on the bar and
shouts: "In Nigeria we have so many glasses we never drink out of the
same glass twice."
The Mozambican then downs his beer, throws his glass into the air, grabs the gun off the bar, shoots the glass, puts the gun back on the bar and says: "Heela, in Mozambique we have so much sand which makes glass really cheap, so we too, never drink out of the same glass twice."
The South African finishes his beer, puts the glass down on the bar, picks up the gun, shoots both the Nigerian and Mozambican and says to the barman: "In South Africa we have so many Nigerians and Mozambicans that we never have to drink with the same ones twice."