Picture the scene: you find yourself in a bar or pub, having a drink with some friends. Suddenly, a man you don’t know comes up to you and begins aggressively shouting and shoving you, spilling your drink in the process. It’s clear that you need to address the issue…but how? Hurriedly, you form two options in your head. Do you a) ask the man to leave you alone, and, only if he persists in acting as the aggressor, call the police? Or do you choose option b) and arrange for a group of Navy SEALS to immediately descend upon the establishment to deal with the miscreant?