Mr. Monk Goes to the Hospital - S5-E16
Continuity mistake: When the police are told room 623 is the geriatric ward, Stottlemeyer is holding the seal with the glove up in his right hand when Randy leaves. But in the next shot, his hand is down and you don't see the glove.
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: In the opening scene, when the woman comes out of the room, you can see the rug in the hallway. But in the next shot, there's two plastic runners over the rug. It alternates from being there to not depending on the camera angle.
Mr. Monk and the Actor - S5-E1
Continuity mistake: When Ruskin and Monk are tussling with each other, the gun falls onto the wipers, with the barrel touching the wiper and handle up. The next time we see the gun, the handle is down and touching the wiper. It keeps flipping back and forth in various shots.
Mr. Monk and the Big Game - S5-E3
Continuity mistake: The shoelaces Monk is ironing change position without being touched, depending on the camera angle.
Mr. Monk and the Garbage Strike - S5-E2
Continuity mistake: The garbage bags seen behind Dr. Kroger's window keep changing depending on the camera angle.
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 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.
Continuity mistake: When Linda is showing the apartment to the Captain, she has her phone in her left hand and crosses her arms. Her arms stay crossed, but then in a later shot, with her arms still crossed, the phone is in her right hand.
Continuity mistake: When Jay pulls up to the marina, he parks at an angle and quickly jumps out and then we see him take off in his boat. When the Captain arrives, Jay's car is no longer at an angle and is parked properly.
Mr. Monk Is On The Air - S5-E13
Continuity mistake: When Monk and Natalie are getting out of their car at Max Hudson's house, there is a woman on the sidewalk walking past the house. As soon as Monk asks, "What station is he on?" the camera angle changes to a view from Max's porch, and said woman suddenly disappears, when she should be seen walking across the driveway. (00:07:55)
Mr. Monk and the Class Reunion - S5-E6
Continuity mistake: When Natalie is noticing Monk's nickname on his registration form, you can see a female extra with black hair, a gray outfit and a purse on her left shoulder walk past Natalie on the left side of the screen. Twenty seconds later, as Natalie is turning and preparing to walk away, the exact same female extra walks past her again, again going in the same direction. Also, in the same shot, you see a male extra with a satchel over his shoulder walk past the camera as Natalie is pulling the form from her purse, and he briefly and instantly reappears walking past Natalie again at the point where she grins and says, "I don't know!" for the second time. (00:05:25 - 00:06:10)
Mr. Monk Goes to a Rock Concert - S5-E8
Continuity mistake: When Monk and Natalie are first talking to Kendra Frank, when Kendra says,"Look, they're trying to say he OD'd! Okay? That's impossible! He's been clean for 17 months! I know, I talked to him about it every day!" you can see that Monk has his right arm down by his side. But when the camera changes angle to Natalie replying,"Well, Kendra, we were there. We saw a needle in his arm," Monk's right hand goes from being by his side to scratching the side of his cheek with his finger. (00:13:10 - 00:14:35)
Mr. Monk Is At Your Service - S5-E12
Continuity mistake: During the brunch scene with Natalie's parents, the rolls in the bread bowl change position several times. In some shots, there are four, in others, there are five. They also go from being piled on top of each other to being arranged in the bowl and back several times. They're out of Monk's reach, so he's not just "making them even" either. (00:04:50 - 00:06:35)
Mr. Monk Makes A Friend - S5-E11
Continuity mistake: Monk pushes aside a glass of milk on the table in his apartment. It is mentioned multiple times during the series that Monk is afraid of milk. He would never have any in his home, and certainly wouldn't have a neutral reaction to it. Also, the milk appears to have spilled a little as it was pushed, and yet in the next shot there is no milk on the table. (00:33:00)
Mr. Monk Goes to a Rock Concert - S5-E8
Continuity mistake: The lighting and position of the sun changes constantly throughout the episode and between scenes. For example, when Monk and Natalie are at the first aid tent, it looks cloudy and the lighting suggests that it is midday. Yet in the very next scene, when Monk, Natalie and Kendra catch up to Stottlemeyer, Disher and Jared, it appears to be sunny and late afternoon/early evening. (00:19:00 - 00:25:05)
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.