At the door, a policeman standing to attention salutes.
The prime minister says, "I'm sorry I can't return your salute but my arms are full."
The policeman replies, “Yes, I see the pigs sir."
To this Mr. Cameron says, "Oh, these aren't ordinary pigs, these are genuine Gloucester Old Spots."
The prime minister continues, "I got one for Nick Clegg and one for Ed Milliband."
The policeman says
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