The son of a neighbour of my parents is a Royal Marine. A short while ago he and another Royal Marine who was just back from the Middle East went to a local pub for a quiet pint. Another patron told them that somehow they had drawn the ire of a group of yobs in another corner of the pub and that the two of them would be attacked when they left. When the two of them left, the yobs were waiting for them. Big mistake: the two RMs switched into combat mode and sent the pack of them running: "I'm a Royal Marine, I'm just back from ****, and I'm going to rip your throats out." (I imagine the language was rather more colourful). And then they just walked home.
That's class. Well done, sirs!