Once upon a time there were two friends. Obi Wan Kenobi was a Jedi with a penchant for mischief. His friend, Darth Vader was a brooding soul who often forgot his light saber when he left his house in the morning.
Sometimes they would get in fights over little things. Like when Obi Wan accidentally hit Darth in the head with his light saber.
In spite of Obi Wan's continued bullying, Darth was a forgiving sort and their friendship survived. 