one day i was working at bertucci's, and i went outside in the alley with someone to see my boss sitting on my bike, talking to someone. he see's me, and instantly starts asking questions (this was before it was fixed)

him: "whats the deal with this bike, only a front brake? what are you going for suicide or something!?"
me: "no, you only really need a front brake, thats as fast as your bike is possible to stop"
him: "thats insane, your gonna go flying over the handlebars and kill yourself!"
me: "not if you know how to use the front brake, but just wait til its fixed gear, only one gear, and you can't coast"
him: "why the hell would you want to do that?!"
me: "because you dont need to coast, or all those gears, or brakes for that matter"

sometimes i like explaining it to people, and sometimes its just annoying, because most people are stubborn, and won't understand anyway, no matter how many times you explain it