Kim Jong Il denied his son succession rights because he tried to go to Disneyland!
North Korea tries really hard to stop any kind of outside pop-culture from coming into the country in fears that it would destabilize the dictatorship. The state-run media frequently claims that imperialists are trying to infiltrate the country through things like music and television.
So when his son got caught with a fake passport trying to go to Tokyo Disneyland, Kim Jong Il took him out of the line…