Mr. Monk Is Up All Night - S6-E9
Factual error: [SPOILER ALERT] At the end of the episode, it is revealed that the mysterious cab driver had corneal transplants to repair damage to her vision from Retinitis Pigmentosa. RP is a defect of the retina, in the back of the eye, which accumulates pigment, losing its photoreceptivity, resulting in vision loss. A corneal transplant will not restore vision to someone with RP.
Mr. Monk Is Up All Night - S6-E9
Continuity mistake: Gulliver makes a bet with Monk and puts $50 in bills on the bar. When Monk puts down a $50 bill to match the bet and slides it across the counter, Gulliver's money has changed positions, rotating 90 degrees without being touched. (00:22:30)
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.