Mr. Monk and the Miracle - S7-E9
Continuity mistake: When Natalie enters Monk kitchen with a bag of groceries, from one angle the bag is on top of the cutting board. In the side angle she is removing items from the bag on the counter. (00:17:57)
Mr. Monk and the Captain's Marriage - S4-E12
Continuity mistake: While at the crime scene in the junkyard, Monk is trying to explain things, but is unable to concentrate because one of the stacked junked cars still has a headlight in it. Frustrated, the Captain shoots the light out so Monk can continue, but as the screen pulls back the headlight is still unbroken in the car.
Mr. Monk and the Candidate (1) - S1-E1
Continuity mistake: When Mrs. St. Claire refers Mr. Monk as "Rain man", her glass is about an inch and a half full. Next time we see her the level of liquid has dropped. (00:16:45)
Continuity mistake: In the flashbacks of Sharona's uncle's fall, he's lying perpendicular to the steps, but in the photos of the incident we saw earlier, he was lying in line with them. In fact in the last flashback showing the murder his position changes again, turning from a 90 degree angle to be more like 45.
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: During the touch football game, when Natalie first throws the ball to Monk, he catches it and a guy in a blue T-shirt and jeans is running up behind him. Angle switches as Monk twists out of the way, and it's a different guy wearing black shorts instead. A few cuts later and Monk runs past the same guy in black shorts again.
Mr. Monk Gets Married - S2-E15
Continuity mistake: In the room with the memoirs, Monk turns around and reaches towards a few slightly misaligned books to take one and read it. In the closeup, it's a neatly stacked shelf.
Mr. Monk and the Missing Granny - S2-E13
Continuity mistake: Monk identifies the kidnappers' house by the pizza box outside by the bin. In the wide shot it's upside down on its corner, with "zza" just visible behind a black bag. In the closeup it's turned around, so we can see more letters, and it's moved.
Mr. Monk and the Paperboy - S2-E10
Continuity mistake: Stottlemeyer says "does that make any sense to you?" as Monk is straightening the pots on the mantelpiece - all the lid handles are horizontal. The camera cuts away for a second, cuts back, and the lid on the far right has suddenly rotated 90°, whereupon Monk straightens it to be horizontal like the others.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: When Meredith's husband has his heart attack, his head falls into the soup bowl. However, in one shot the bowl (with his head in it) is tilted; after a cut, it is suddenly flat on the plate.
Mr. Monk Makes A Friend - S5-E11
Character mistake: At the crime scene, the #8 evidence marker is in the bathroom. When Monk and the Captain are examining the body, a #8 evidence marker is seen on the lamp. They wouldn't use a number more than once at a crime scene.
Mr. Monk Makes A Friend - S5-E11
Continuity mistake: The position of Gail's body moves at the crime scene from when officers cover her head with the tarp to when the Captain uncovers her a few moments later. At first, her left hand is under her forehead and covered by her hair, but then the hand is away from her head and not covered by hair.
Mr. Monk and the Other Detective - S4-E1
Continuity mistake: When the reporter is interviewing Marty's mom at the crime scene, the reporter lifts the mic to her mouth, but in the next shot the mic is away from her mouth.
Mr. Monk and the Election - S3-E15
Character mistake: Captain Stottlemeyer uses gloves to pick up the letter found sticking out of the pipe. He doesn't actually put the glove on, but still uses it to avoid getting any of his prints, skin, etc on the paper. But then he uses his other, non-gloved hand to open up the note and hold it, and Monk also touches the letter. If he cared about not contaminating evidence by using the glove, he wouldn't touch it bare handed and if he didn't care about touching the note bare handed, then he wouldn't have used the gloves.
Mr. Monk and the Astronaut - S4-E14
Audio problem: When the astronaut is speaking and we hear "I made a mistake, Captain. Five years ago," his lips don't match what we hear him saying. (00:11:10)
Mr. Monk Joins a Cult - S6-E11
Revealing mistake: When Monk and Natalie are talking to the cult members, a Culver City bus can be seen driving in the background, which is a Los Angeles bus, but the show takes place in San Francisco. Culver City is home to a lot of movie shooting. (00:09:15)
Mr. Monk and His Biggest Fan - S6-E1
Continuity mistake: When the Captain is approaching the killer, a piece of wood is protruding from the cart. After a cut, that wood suddenly disappears. The cart has also inexplicably shifted to be much closer to the killer. (00:40:00)
Mr. Monk Falls In Love - S7-E6
Continuity mistake: The woman sitting and waiting, in the red with a green scarf, is sitting without anyone to the right of her. After a cut, suddenly a man appears sitting next to her on the right. (00:06:45)
Continuity mistake: The Captain hits the murderer at the end with his left hand. In the next shot of the Captain he is shaking his right hand as though that is the hand he used to hit the murderer.
Mr. Monk Joins a Cult - S6-E11
Continuity mistake: Ralph has his hand on Monk's shoulder during the applause, but after a cut, his hands are both suddenly stretched into the air. (00:21:50)
Mr. Monk Takes Manhattan - S3-E1
Continuity mistake: The angle of one of the victims' heads visibly changes from shot to shot while Monk is investigating the scene. (00:05:30 - 00:06:25)
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.