"Some of you have had this lesson before," Obi-Wan warned up front, "But as the new semester is approaching once more, it seems relevant to bring it up again for the rest of you. See, not all familiar faces who make it to these shores are actually familiar. This school has a lively history of what is commonly referred to as doppelgangers. People who share the same face as a friend or a relative, yet have no connection to them whatsoever."

"My first summer here as a student there was another student who looked just like my older cousin," Ben said. "It was extremely disconcerting."

"It creates a uniquely complicated situation," Obi-Wan said. "It is easy to simply try and ignore them, though circumstances may occasionally make this difficult. A different path would be to befriend them, so eventually whatever unique features they may have begin to pave over the memories one has of the person they most resemble."

He gave a vague wave at the class. "Of course, that may not be emotionally feasible, especially if that person is tied to... traumatic occurrences. They may resemble an old enemy, or a relative who betrayed you... or died."

Ben nodded hard. "I spent a lot of the summer camped out on the beach, which is really not the healthiest choice."

"Whatever feelings you may have about it when it happens," Obi-Wan said, smiling faintly, "They are valid. It is not an easy situation to find yourself in. Still, it is best to consider how one would handle it: there must be more strategies than simply hiding, running away, or trying to pretend as if nothing is wrong. And, for that matter... Can you think of someone whose very face may cause you anguish to the point of self-banishment?"