Nigel Farage walked into a bar and says "give me a pint!"
The barman obliges, and pours the pint over his head
"What are you doing?!" asked Farage "I didn't want it over my head!"
"You didn't specify how you wanted it ... as long as you get the pint, this way must be as good as in a glass, right?"
"Well, okay, I want another one ... but this time in a glass"
"Nope ... you only get to ask once."