Nancy's going to town on her oasis, hanging up windchimes: little moons, sparkly jewels. No butterflies. She's actually happy for a second, smelling the herbs. She used to visit these mountains with frequency. She hears over the chimes and smells a very strange outer-space sound, and heads inside, where she finds Shane playing the theremin and Isabelle doing something weird in Ginger's Ray-Bans that I never quite got a look at. Ignacio is in the corner, listening to Ginger's Zune and eating a delicious frozen treat.
(It was at this point that I thought to myself, "Sanjay is right, that dude is hot." Not the first time I've had that thought. But the next one was all new: "And looks a hell of a lot like Judah." Which seemed random and I had to backtrack and look, but it's true: the eyes are sparkly the same way, and the smile always goes northeast, just like Judah. And given that it's taken me five episodes to figure out the Silas/Doug thing, I'm glad this scene put me on that track.)
Isabelle lies that they found the theremin near a dumpster, which runs counter to Shane's entire mission in life right now, so with a bravado entirely fueled by hatred, he grins generously and stares his mother down: "We don't have to lie to her, Isabelle! I've been selling Silas's leftover cheese pot, and my shitball teacher jacked my stash, so I jacked him back." As though to corner into not having a problem with it, in order to make clear to her why she has a problem with it. Isabelle deflects to Ignacio, so Nancy asks WTF he was thinking, and Ignacio laughs: "I am so sorry that I exposed him to the world of criminal activities for the first time." Point, enough for Nancy to drop his Zune in the ice cream, yelling about how she can't live like this, and Shane beaming like the sun.