Mr. Monk and the Panic Room - S3-E2
Continuity mistake: Stottlemeyer has taken things like a banana and a Monkey Joe out of a black leather bag and places them on a table while interrogating Darwin the chimp. One shot while he's acting like a monkey shows the table's bare and the bag's closed.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: When Monk gets a glass out of the cupboard, he closes the door. When he picks up the phone, the door is open.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: When Monk and the Captain are in the recording studio room, the candles next to the framed pictures are lit. When Monk walks past them, they're unlit. They're lit again in the next shot.
Mr. Monk and the Blackout - S3-E3
Visible crew/equipment: During the police investigation at the power station, the shiny blue construction helmets show us the stage lights, reflectors, camera and film crew several times. (00:09:00)
Mr. Monk and the Blackout - S3-E3
Deliberate mistake: As Monk is using the night vision goggles in his house the lights suddenly come back on and continues on still thinking that the intruder cannot see him. The light coming on should have blinded him or at the very least he should have been able to tell there was more light than before even if he hadn't had much experience using the goggles. All the lights in the house come back on and the amount of light would be too noticeable with night vision. This would have been deliberate as Monk continues to think the intruder still doesn't see him in the dark and is part of the joke in the scene.
Mr. Monk and the Blackout - S3-E3
Continuity mistake: When Sharona is trying to comfort Monk after he gets off the elevator, she's holding his hand and rubbing his arm. When Michelle walks away, in the next shot, Sharona's hands are on Monk's chest and shoulder.
Mr. Monk and the Blackout - S3-E3
Continuity mistake: When the second bomb is being placed (after the restaurant scene), the bomber is holding the bomb by the ends (the short side). In the next shot it's being held by the front (the long end).
Plot hole: While convenient to the plot, the computer system used by the medical examiner is far too poor to be taken seriously for a high level agency. While Monk is unaware of deleting the files on the computer, why would there be a one button push to delete all the files on working cases? Even to not have some sort of password to delete files is questionable, as most systems in offices and workplaces will only have functions like this for administrators, executives etc. We find out that all the files are backed up and are slowly being recovered. However, these types of systems are primarily for emergency scenarios such as fire, flooding and so forth. With the ease that Monk is able to delete the files by accident, it seems a bit hard to believe how easy it is to do.
Factual error: As Monk is removing the crumbs off the keyboard, he flicks one crumb away from the backspace key. It gets flicked up and lands near the 0 button on the numeric keypad. Yet when this happens, the screen then says "Do you want to delete files?" as if he hit the delete button.
Continuity mistake: In the opening scene, the orange-and-white scarf that Paul Harley uses to blindfold Lorissa changes positions and color patterns repeatedly between shots as he escorts her from the pool to the garage.
Plot hole: In this episode the police are using the toupee of the commissioner to identify the torso as the missing woman. In reality that would not be possible since cut hair is missing the root and therefore only contains mitochondrial DNA, which can only be used to identify a human's relation via the female lineage, as it is the same in relatives and passed through generations from the mother to her children. Furthermore, the identification of said torso would likely not be sufficient proof that Mr. Harley killed her as he may claim that somebody misled him to believe she was in Paris by placing the telephone call he mentioned to police.
Continuity mistake: When the commissioner is getting into the car, he opens the door pretty wide. In the next shot when his hat gets taken, he's seen opening the door again.
Mr. Monk Meets the Godfather - S3-E5
Continuity mistake: In the scene where Monk meets Salvatore Lucarelli (Philip Baker Hall), Lucarelli is cutting up fisheads on a cutting board. Throughout the scene the fish on the table constantly change between shots. One of the notable changes is when Lucarelli is discussing the case he has for monk there is a shot of a fish, and when the shot changes you can now see the fish's head has all of a sudden been chopped off.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Visible crew/equipment: Nurse Davis swings open Disher's car door at the end, and captures a reflection of the camera and the entire film crew standing nearby. (00:40:40)
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: About midway through, the new nurse is sitting on Monk's kitchen counter eating a sandwich. She puts the sandwich down on a plate as she hops off, the shot switches to another angle to include Monk as she walks away, and the sandwich has suddenly jumped off the plate and is now lying on the counter a few feet away. Neither of them had time to pick it up or move it.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: At the end, when Sharona and Monk are leaving, Sharona opens the car door. But in the next shot, it's closed.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: When Sharona sets the two grocery bags on the counter, the position of the items change after they tip over and after she picks the one on the floor up when talking to her ex.
Mr. Monk and the Girl Who Cried Wolf - S3-E6
Continuity mistake: After Sharona's class, she's holding her book upside down when talking to the teacher (so the binding can be seen). In the next shot, the book is held right side up. Afterwards, when she's walking away, the book is upside down again.
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 and the Employee of the Month - S3-E7
Continuity mistake: When the episode begins, the Employee Of The Month is shown walking into Mega-Mart. The exterior of the store is shown as a cement color and there is a garbage can right beside the front door of Mega-Mart. When the Employee Of The Month is shown opening up the door to the store, just seconds later, you will see the exterior of the building is now yellow and white and there is no longer a garbage can beside the door. Clearly they are using two completely different buildings. (00:00:40)
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.