Mr. Monk Is Underwater - S7-E5
Factual error: Commander Whitaker tries to drown Monk and Natalie by trapping them in the ballast tank of the submarine. The ballast tanks on a submarine are inaccessible from the interior, and wouldn't have dramatic lighting in them either.
Mr. Monk Is Underwater - S7-E5
Factual error: Monk borrows Lt. Albright's sidearm to prove a point. All weapons on a submarine are locked in a small arms locker until needed, not carried around by officers. Further, medics are traditionally not issued firearms.
Mr. Monk Is Underwater - S7-E5
Factual error: The standard issue pistol for the US Navy is the 9mm Beretta 92F, not the Walther P38 as shown.
Mr. Monk Is Underwater - S7-E5
Factual error: Lt. Albright shows Monk and Natalie the "USS Seattle", a "Class 4 Submarine". US sub classes have names, not numbers, so she would be Los Angeles, Seawolf or Virginia class.
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.