With Professor Rothman (Lynn Phillip Seibel) forced to retire because of his mental health, both Sheldon and Kripke call dibs on his office. Since university president Siebert won't take sides, however, they both have to battle it out in a sports duel since neither are good at that. Basketball is chosen. Neanwhile, Amy gives Penny a giant painting of the two of them together as a "bestie" gift which Penny doesn't like (especially since her expression in it is obviously pained) but does her best to hide her real feelings to Amy. I'll stop there and just say that the writers have done it again in crafting an excellent ep of "The Big Bang Theory"! So on that note, I highly recommend "The Rothman Disintegration".