Quick spoilers for tonight's "Curb Your Enthusiasm" coming up just as soon as I reject your hypothesis...
The "Seinfeld" gang is here next week, but I have to say, I was a lot more excited by the end of this episode - specifically, that Leon will be sticking around even though Loretta and the rest of the Black family have moved out. Leon has now become such a fundamental part of the show - I'd argue he's currently the funniest character other than Larry himself - that it would have been a huge disappointment to say goodbye to him along with everybody else. And I love that they didn't even bother contriving a reason for Leon to stay while his sister was bailing, but instead had him act like no other option had ever occurred to him. I'm so relieved JB Smoove is around to matter-of-factly deliver lines like "Ass is ass, Larry!"
(One question on the Leon subplot: why wasn't there some kind of joke made about how unusual it is that one of Leon's friends was a big "Seinfeld" fan? Wasn't there always a big deal in the '90s that "Seinfeld" at its peak was the most-watched show in white households and the least-watched in black ones?)
The rest of the episode dealt, hilariously, with rules of etiquette governing oral sex and automobiles, with occasional interludes for Larry to attack a vacuum-sealed package (which led to one of the better "Curb" episode-ending jokes in a while), and guest stars Sharon Lawrence and Lolita Davidovich both fit in well.
What did everybody else think?