Adrian Monk: Yes, I am a good detective. But I'm a terrible witness, which is why I'm quitting.
Dr. Bell: Adrian, setbacks like the one you just experienced are a part of life. You could argue they're the most important part of-
Adrian Monk: You don't understand. A killer, a stone-cold killer is back on the street because of me. Because that lawyer Harrison Powell ripped me apart on the witness stand. You weren't there. He he dismantled me. I was helpless.
Dr. Bell: I understand.
Adrian Monk: And it's going to happen again. What's to prevent it? I'll solve another case, then somebody else will be arrested, and all they have to do is hire Harrison Powell. It's like he has one of those get-out-of-jail-free cards.
Dr. Bell: It's funny you mention it. That's exactly... Never mind.
Adrian Monk: I'm a liability now. I'm the weak link. Believe me, I'm doing the city a favor.