Mr. Monk Takes His Medicine - S3-E9
Continuity mistake: When Monk is eating dinner, he spills ketchup on his shirt, but in the next shot his shirt is clean.
Mr. Monk Takes His Medicine - S3-E9
Continuity mistake: In Stottlemeyer's hospital room, a medicated Monk finishes off the leftover pudding from the food tray. Then, while he's talking to them, the pudding smeared on his upper lip disappears and reappears between shots.
Mr. Monk Takes His Medicine - S3-E9
Continuity mistake: During Monk and Sharona's race to the armored car robbery scene, the red Mustang's rear-view mirror disappears. When they arrive, though, it's back in place on the windshield. (00:36:30 - 00:38:30)
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.
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.