Panel 1: Now that John has finally clued in and moved to the other side of the couch, he still cannot relax because Mike and Liz are arguing about whatever pointless thing that will never matter children argue about. Having had enough, he tells them to knock it off.
Panel 2: He then unhinges his jaw and yells about how he's just come from a miserable day at the office.
Panel 3: We foreshadow that icon someone used to have that had April tell John to quit morphing into Elly when he continues channeling her; this is because he too looks as if he's pleading for his life when he asks if there's one room in the house where he can cower behind his paper instead of interacting with his family in peace and quiet.
Panel 4: A little while later, we find Elly knocking on the bathroom door asking him how long he's going to be in there. Y'see, she has to take a nice long bath in order to avoid dealing with the kids and.....
Summary: As one might guess, we're about to launch into another set piece in which John soothes the pain of having to pretend to be a mature adult by buying an ego-gratifying toy. That's because he was screaming like this just before he bought the HeylookitMETedMobile of Overcompensation. All we need now is for him to be at the office mooing about how his life is zipping by too fast and how he wants very much to be a (selfish and shortsighted) child again.