Jerry is always kidding around, especially with Rob. After watching Alan Brady's show over at Rob and Laura's with Millie, Jerry just goes on and on about how awful the show was. Of course, he's only kidding. But when Jerry's kidding on this issue becomes relentless - he telling almost everyone he knows how awful that show was - Rob is almost at the end of his rope. The next day, Rob accidentally punches Jerry in the nose - at least according to Rob, although admitting that it did gives him some sense of satisfaction - which some may suspect really was Rob's intentional way of getting even. But that punch starts a chain of unintentionally violent events, and a chain of misunderstandings.
—Huggo