Crane: Look, you don't belong here.
Po: I know. I know. You're right. I don't have... I just... My whole life I dreamed of...
Crane: No, I meant you don't belong here. I mean, in this room. This is my room. Property of Crane.

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Crane tells Po he does not belong here. He thinks he means with them, but Crane literally means in his room, as it is Crane's.

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