When Dennis is digging through the garage for cases of wine in this episode, there is a box labeled 'Frass Canyon' among them. Frass Canyon is the same winery where Paul Giamatti memorably dumped an entire cistern of pre-spat wine all over himself in the film, 'Sideways.' Either this is a subtle homage to that film, or, perhaps, both 'Flaked' and 'Sideways' exist in the same narrative universe.