A man is on a soap box and he shouts to the crowd:
“The Prime Minister is a lying, conniving, two-faced warmonger….”
Two policemen emerge from the crowd and go to arrest him. The man says “Why are you arresting me?”
One of the policemen says “you just insulted Prime Minister Cameron”
The man says “But there’s more than one prime minister – there’s the prime minster of France, the prime minster of Belgium, the …”
"Yes" says the policeman says, interrupting, “But there’s only one lying, conniving, two-faced warmonger ….”
Feel free to choose your own politician