In AMT399, we find out about tuning church bells, cheetahs being given pet dogs, Olly getting lost in SeaWorld, how pickled onions inspired soft play, and which ways you might be most likely to be killed by a ball pit. We also have a Big Announcement ahead of episode 400. Find out more about this episode at . For more AMT stuff, head over to answermethisstore.com, where you can get our six special albums, AMT episodes 1-200, and our Best Of compilations. Send us your questions for episode 400, as well as your precious AMT memories - whether our answers to your questions helped or hurt your life, whether you made any friends through the podcast, whether you started your own podcast, the weirdest place or oddest thing you were doing while listening to the show, we want to hear it all! Email written words or voice recordings to . Tweet us @, and follow us on Facebook . Hear our other work: Olly Mann has a new podcast, the Retrospectors, which you can find along with his other shows at ollymann.com; Helen Zaltzman makes the podcasts The Allusionist - theallusionist.org - and Veronica Mars Investigations VMIpod.com; and Martin Austwick's music is available at palebirdmusic.com, his Tom Waits podcast Song By Song at songbysongpodcast.com, and the music'n'science podcast Maddie's Sound Explorers, hosted by Maddie Moate, at . This episode is sponsored by: • Wondrium, the streaming library of tutorials, lectures, documentaries, how-to videos, travel, craft and much more! AMT listeners get 14 days' free access to the whole library at . • Squarespace. Want to build a website? Go to , and get a 10% discount on your first purchase of a website or domain with the code 'ANSWER'.