A Texan, a Russian, and a New Yorker go into a restaurant in London.
''Excuse me, but if you wanted the steak you might not get one as there is a shortage due to the mad cow disease,'' says the waiter.
The Texan says, ''What's a shortage?''
The Russian says, ''What's a steak?''
The New Yorker says, ''What's excuse me?''
