Mr. Monk Makes the Playoffs - S7-E13
Continuity mistake: Just where was that evidence locker? Randy borrows a big screen TV from the evidence room and pushes it upstairs toward the ground floor office, indicating the evidence locker is in the basement. But when Natalie arrives and walks through the office, she goes up the stairs instead of down to find Randy with the TV wedged in the stairwell, indicating the evidence room is on the upper floor. The TV wedged itself tight on his way up the stairs, so he hasn't moved it in the meantime: he's in exactly the same spot with the same picture on the wall. (00:40:30)
Answer: Notice also that in the opening credits scene when he is touching parking meters her also wipes his hand on his clothes each time he does it.