Don't you hate pricks who come up on the inside lane, when you're parked at the lights, edging forward because they know that their lane doesn't continue on the other side of the intersection? They figure that because they drive a BMW, or an Audi, or a Merc, that they're entitled to be in front of everyone else. Why should they wait in the line of traffic like everyone else? Yes, they think, I'll go up on the inside and blast away from the lights, cutting across in front of anyone who dares get in my way.
Well, drivers, I've got news for you. This little black duck is going to make sure that you don't get in. Once you cross the intersection, you're going to have to pull up in hurry to avoid running into the back of that parked car. Just try it and find out for yourself ;)