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From Tardis Wiki, the free Doctor Who reference
After the Eleventh Doctor lost his sonic screwdriver, Amy Pond suggested that he should retrace his steps to find it. After visiting Florana, Bouken, and Phobos, planets the Doctor had previously visited, Amy hit the Doctor's chest in frustration, saying she meant for him to check the counter or down the sofa. (COMIC: Sonic Sleuth)