Mr. Monk and the Three Pies - S2-E11
Continuity mistake: When Van Rankin takes the borrowed flour from his kitchen counter and hands it to Sharona, it's in a standard paper flour sack, and the counter is clean. Later, there's flour dust on the counter and the impression of a large, round flour tin - like the one in Monk's kitchen - instead of an imprint of the paper sack. (00:37:20)
Mr. Monk and the Three Pies - S2-E11
Continuity mistake: When Van Rankin shoots his wife, the black gym bag, which has been slung over his shoulder since he entered the kitchen, disappears between shots. (00:31:05)
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.