Linda's sister Gayle unexpectedly shows up at the restaurant, on new medication and in high spirits.
She intends to stay for a few days on the first stop of her "Eat Pray Love" tour of the world.
Bob veers off-course to a secluded area where Gene and Louise are building snowmen in a contest for the jawbreaker.
Meanwhile, Gene and Louise, who lost the jawbreaker in the snow, begin fighting over Bob's tooth.
Giving the two younger, louder children a story of escalating dares is as close to a comedic sure thing as you can get, and "Dr. Yap" doesn't disappoint.
Each of the challenges is fun, from the initial "most disgusting drink" competition, to the kids stuffing snow down their pants for as long as they can.
Having the kids be so reliably funny, both in how they’re written and acted, ensures that Bob’s Burgers can rely on having something good each episode while the producers tinker with other aspects of the show.