Obviously, Adrian Monk speaking gibberish was a bizzare twist at the beginning of this episode, but to me, the most significant part of this episode is that it introduces Sharona's sister Gail, who plays a crucial role in "Mr. Monk Goes To the Theater" (Season 2, Episode 6). The 'Charades'/'Let's Stump Monk' scene was probably the most comical moment in the story. Smooth move on Adrian's part to avoid talking about paychecks to Sharona by feigning gibberish! THAT idea is bound to catch on with young viewers!
Not the most eventful episode, but intriguing in its own right.