Steve and Shivani head to The Royal Opera House, in which childhood memories resurface and the two question whether or not wizards and witches need to poop.

S1E9 - United Grand Lodge of England

Steve and Shivani used to talk about mundane, everyday things like cats, the weather, or quantum mechanics. But now, they've turned their attention to far more interesting and cultured affairs: Publicly accessible restrooms. They used to visit a different toilet every week and discuss their experiences, but that got boring, so now they're just talking about whatever weird and wonderful toilet stuff they can come up with.