Continuity: Ringel closes the blinds, then turns and walks away from the window. After a brief shot of Monk and Marcy, Ringel turns and walks away from the same window again.

Continuity: When Natalie is talking to Marci at Monk's door, Natalie's position in relation to the door changes between shots.

Continuity: As Marci is telling Monk about the picture she painted of him, Monk and Natalie approach her. As they approach, they change position between shots.

Continuity: The stacks of yellow craft blocks that Marcy is carving with her knife change both positions and quantity between shots.

Continuity: In the lumber yard, Randy shows a rare streak of genius by knocking out the bad guy with a 2x4 shoved through a stack of boards. When the 2x4 strikes Ringel, it stops its slide protruding about six inches from the stack. When the camera angle changes for the very next shot, the 2x4 is suddenly sticking out more than a foot.

Continuity: Near the end, when Ringel pulls a gun on Monk and Marcy, he reaches over and closes the venetian blinds. There's no gap in the shuttered blinds when he walks away from the window. Then there is. Then there isn't again.

Other: It's out of character for Monk, a chronic stickler for details, not to correct an error, especially one relating to his own life. Marcy's diorama for "Mr. Monk & the Three Pies" includes Natalie, who wasn't around yet when "Three Pies" occurred. The doll should be of Sharona, but since that would ruin the ensuing joke, Monk is allowed to overlook it. He's aware of Marcy's unreasoning obsessions, but Monk's OCD would simply not permit him to keep quiet about a mistake that glaring.