Mr. Monk and the Leper - S5-E10
Revealing mistake: When the balloon goes over the cliff, a very obvious dummy replaces Monk.
Mr. Monk and the Leper - S5-E10
Revealing mistake: Look at the stuntman who stands in for Tony Shalhoub when the balloon crashes and the basket scrapes and bumps along the ground. He is about fifty pounds lighter than Shalhoub, looks nothing at all like him and his hair looks like a Harpo Marx fright wig dyed black.
Mr. Monk and the Leper - S5-E10
Revealing mistake: When Monk is hanging from the cliff, in the shots looking down at Monk you can see the ocean through him.
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.