Tea and Machine Guns

On my walk from the Tube station to the office, I pass by the Saudi Arabian Embassy. There are two British police officers that stand on the sidewalk outside the tall black iron gate holding some very impressive-looking machine guns. This morning, I noticed cups of tea in their non-machine-gun-holding hands. Ok, they may have been drinking coffee or even hot chocolate for that matter, but I would much rather imagine that it was tea. I would have taken a picture of them but there's something about their fully-automatic firearms that doesn't seem to welcome photography.