@Robert: Thanks for the compliment! Peter and I had a lot of fun cooking up this episode. And actually, I sent him 30 questions; the four in this podcast are just the ones he finished answering first, so I'm sure we'll share more sonic mischief in the future.
Did you have to get written releases for all the sound clips you used in this podcast or are they covered by fair use?
The clips are all short and used in a critical context, so, according to two lawyers I checked with, that falls under Fair Use.