Some idiots do not deserve a licence
They do not only endanger themselves with their egoistic behaviour..
When we were around 25 or so, a friend of mine and me drove along a street in the city, when an idiot passed us at the left and went back into our lane just in time before ramming an incoming truck frontally, so we had to break really hard.
At the next red lights where he had to stop, my friend left the car, went to the other car and punched the man in the face one time, and asked "You know what this was for?". The "man" (around 18 years if at all, in his BMW) just nodded.
Sometimes i wish such actions could always be handled this way