The jazz musician Charles Mingus was a celebrated band leader and one of the most important composers of his generation. But at the same time he was recording The Greatest Jazz Concert Ever with Dizzy Gillespie and Charlie Parker, he was working on another masterpiece of sorts. He figured out how to get his cat, Nightlife, to poop in a toilet — and he decided he’d share his method with the world. Subscribe to Studio 360. Phone: off. Email: off. Brain: off. Podcasts: on. Road Trip with WNYC: Beach Day Edition is perfect for: smiling, soaking, sunning.