That's the double standard when dealing with these two wheeled morons, if you hit them, they will stop you and demand payment but if they hit you, good luck catching them.
And if you do hit them out of rage or revenge, the law is still on THEIR side as in ANY accident between a two wheeled vehicle and a four wheeled vehicle, irregardless of who is really at fault, it will be the fault of the four wheeled vehicle. This is why most people just keep going if they get hit or hit these pests because nothing good will ever come of it if you stop. This is also one reason why these yokels are as "daring" as they are because they can get away with it, unless they die from their stupidity, of course.
Their luck eventually runs out and you see them covered with a newspaper after tempting Fate all the time. Even then, they're still a pain in the *$$ as traffic will be horrendous because of all the freakin' rubber neckers admiring the accident scene. Some may even be celebrating that the two wheeled pest has finally met his match and received what was due him.