"Driving a cab is not really a nurturing type of relationship. You take people and they tip you, they may not tip you, you don't know their names, they don't care about you, you don't care about them."

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People say New Yorkers can't get along. Not true. I saw two New Yorkers, complete strangers, sharing a cab. One guy took the tires and the radio; the other guy took the engine.

— David Letterman