Adrian Monk: He was in here. He was waiting.
Lieutenant Gitomer: Waiting for what?
Adrian Monk: You know, for her. He was here at least an hour. He was smoking. You can still smell it on the curtains. Menthols. Salems. Possibly Newports.
Lieutenant Gitomer: Maybe she was the smoker.
Adrian Monk: No. No, she was a Dutch Calvinist. They don't smoke. They consider their bodies to be a holy a holy chalice of... Sorry, I'm having trouble concentrating, because I think I smell gas. Did you hear the click? You gotta hear the click, not just feel the click. Hear it.