I'm still a newbie, so I can only talk about those lessons. in Nihongo Dojo there was this bonus audio track about someone losing some ピンクのパンテ, which turned out to be Fabrizio's; I had to listen to that one over and over again
Also the story about the coma patient, who wakes up in the hospital and turns out to be an agent of the PSIA. Just as if it was out of a Japanese daily drama
So definitely I'd say the crazy stories are the most interesting.