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.
Mr. Monk Gets Stuck in Traffic - S3-E13
Continuity mistake: Throughout the highway driving sequence in the beginning, Natalie's rear view mirror disappears and reappears repeatedly.
Mr. Monk Goes to Vegas - S3-E14
Continuity mistake: As Stottlemeyer steps off the stage, after singing, he is holding the microphone and pulls it down so that the top is pointed toward the floor but in shots following this, when he is talking to the woman, the microphone is back in an upright position.
Mr. Monk and the Red Herring - S3-E10
Continuity mistake: Monk empties a pocketful of pushpins onto the science teacher's counter top. One rolls to the very edge, separate from the others. A few minutes later, the stray pin is missing. Just before Monk and Natalie leave, however, it reappears on the counter edge.
Mr. Monk Goes to Vegas - S3-E14
Continuity mistake: After Monk tells Randy to hit whilst playing Blackjack, the dealer gives him the Three of Spades. The dealer places it a bit to the right and over the Eight of Spades. The next shot we see of the cards the Three is now completely over the Eight and we can only see a bit of the bottom of the Eight.
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)
Mr. Monk Gets Cabin Fever - S3-E12
Continuity mistake: When Randy and his 'girlfriend' are having take-away (take-out) food, the girlfriend says, "Before he died, he said he's always look out for me". As she says this, her arms are resting on the table, but in the next shot her elbows are on the table and her hands are together just under her chin.
Mr. Monk Takes His Medicine - S3-E9
Continuity mistake: In the hospital, after Monk hugs Stottlemeyer, Stottlemeyer has his left hand on his right shoulder. In the next shot, it's down by his side.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: When the Captain and Monk are standing in front of Randy's desk, there is no bag on the table. After a cut, a black bag suddenly appears and the Captain's hands are on it. (00:15:30)
Mr. Monk Gets Cabin Fever - S3-E12
Continuity mistake: In the scene where Stottlemeyer is smoking an cigar, the size of the cigar and the position of how he is holding it keeps changing from shot to shot.
Mr. Monk Takes His Medicine - S3-E9
Factual error: The medication Monk is given is called Doxinyl, which is a real medication, but it's an antibiotic, nothing to do with OCD and certainly wouldn't cause the side effects shown.
Mr. Monk Gets Stuck in Traffic - S3-E13
Continuity mistake: The murder victim has a dark green environmentalist flag attached to the left/driver's side of his VW Beetle. The flag disappears and reappears several times throughout the first 10 minutes of the episode. (00:10:00)
Mr. Monk and the Panic Room - S3-E2
Factual error: The cops gain entry to the panic room to be faced with a chimp waving around a loaded handgun, apparently having shot a man, and shrug and make jokes about reading him his rights, instead of expressing the slightest concern that this animal might shoot them. Cops shoot remotely aggressive dogs all the time, but an ape with a gun doesn't even make them raise an eyebrow. Plus the police never did a gunshot residue test on the chimp. Standard procedure, and would've proven they didn't shoot.
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.
Mr. Monk Gets Cabin Fever - S3-E12
Other mistake: Kathy says "I'm going to get me one of those new Le Barons." Chrysler discontinued the Le Baron in 1995. Since the episode is from 2005, she should have said Sebring.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: Just after the Captain presses the button to open the panic room door, his arms are both down. When it cuts to a shot looking at him from inside the panic room, his left arm is up against the door. (00:14:10)
Mr. Monk and the Employee of the Month - S3-E7
Audio problem: The audio of the victim screaming is repeated. The "Oh! Help! Help!" sounds the same twice. (00:02:05)
Mr. Monk Takes Manhattan - S3-E1
Factual error: In the episode the victims were murdered with a .22 caliber firearm. However, a short shot of the crime scene focuses on an empty shell casing which comes from a larger caliber firearm, most likely a 9mm parabellum. (00:05:30)
Mr. Monk and the Red Herring - S3-E10
Continuity mistake: When the coffin Monk is in is opened, he has candle wax on his hands. In the next shot, there is no candle wax.
Mr. Monk Takes His Medicine - S3-E9
Visible crew/equipment: When Monk is talking to the two patrol officers about the suicide and walks down the street, the backlot trailers and equipment are visible around the corner of the building and you can also see a set golf cart. This is supposed to be the street that the shooter and biker drove down earlier in the episode. (00:07:13)
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.