Note to politicians: Whatever you do on social media, it will be mocked.
David Cameron tried to show Twitter he was keeping on top of things during the crisis in the Ukraine - by posting a selfie showing him on the phone to President Obama, captioned "I've been speaking to @BarackObama about the situation in Ukraine. We are united in condemnation of Russia's actions".
Trouble is, some cheeky celebrities got wind of Cameron's Twitpic and decided to have a little fun at his expense, posting some hilarious parodies of the photo.
First up was US comic Rob Delaney.
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Then Shakespearean actor Sir Patrick Stewart joined in.
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And then even the general public joined the conversation - making a cockney rhyming slang joke in the process.
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We do love Twitter sometimes.

