Quote from Natalie in Mr. Monk Goes to the Dentist
Captain Stottlemeyer: Natalie! Natalie: Captain, is Mr. Monk here? Captain Stottlemeyer: What would Monk be doing here? I don't even know what I'm doing here. Natalie: I called his house to read him tomorrow's weather report like I always do, but he didn't answer. So I go over there, the door's open. The light's on, but he's not home. Captain Stottlemeyer: The door was open?