"i was once a jedi knight..."
Im home sick so I'm watching the OT. In the scene where Ben gives Luke Anakins lightsaber, he says that he was ONCE a jedi knight like Anakin. Why does Obi-wan no longer consider himself a jedi knight? could he do something in Episode II or III that gets him kicked out of the order? Perhaps by failing to kill Anakin when he has the chance?