An Englishman, a New Zealander and a South African walk into a bar for a drink. The Kiwi orders a round of Tequila Slammers for the group.They slam and down their drinks in one.The Kiwi then picks the glasses up in one hand and throws them in the air. He draws a pistol and shoots the three glasses before they hit the ground.The Englishman asks "Why did you do that?"The Kiwi replies that because they have so much sand in New Zealand it's easy making glasses so they never have to use the same one twice.The South African then orders three Tequila Slammers and they each slam and down their drink.The South African then picks the glasses up, throws them in the air, draws his gun and shoots them before they hit the ground.The Englishman asks why he did it and like the Kiwi explains that there is so much sand in South Africa that glass can be easily made which means never having to drink out of the same glass twice.So the Englishman orders three Tequila Slammers. Each one duly is slammed and downed. The Englishman then pulls out his gun and shoots the Kiwi and the South African.A man runs up and asks "Why the hell did you shoot them?" He replies "Well I'm from Earls Court where there are thousands of 'em. So it means I never have to drink with the same ones twice."