Mr. Monk and the Captain's Marriage - S4-E12
Continuity mistake: When Stottlemeyer goes to open the window in his house, the position of his body (especially his right arm) changes between shots. (00:07:50)
Mr. Monk and the Captain's Marriage - S4-E12
Continuity mistake: In the hospital scene, the items on Gerald's tray change positions several times between takes. (00:27:00)
Mr. Monk and the Captain's Marriage - S4-E12
Revealing mistake: In their efforts to hide Gerald's pet mouse from the hospital staff, Randy and Natalie toss the rodent back and forth and alternate hiding him in their pockets. But every time he's tossed, Devo the Mouse gains weight. In fact, Devo's (stuffed?) stunt-mouse double is at least twice Devo's actual size. (00:27:00)
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.
Answer: Through the entire show, I don't recall her ever mentioning another job. The two explanations I had for being able to afford those cars, was there might have been a life insurance policy after her husbands death (or Mitch left her quite a bit after he died). The other may have been she had accepted some money from her family willingly or unwillingly asked for it. But in truth, I would imagine it was for product placement in the show. Most shows like Monk tend to keep the characters moderately wealthy or financially healthy, so they can insert products or items for the characters to use. Phones, food items, cars etc.
Lummie