The devil is in the details, which Brother and Sister prove by arguing about very insignificant details. This episode the Sibs play with fire by drawing cards from "Unpack That: Therapy in a Box". What starts out very sweetly quickly devolves into various arguments about the CFL, grammar, and what they picked up from who, when.
After a week of being a married single parent, Jon is operating on little sleep, and Allison is quite frankly sick of his BS. She's going to go sit in a shed for several hours by herself.