Isaac Mark stopped by the studio to announce that this was his last day with the show. Howard said he was sorry Isaac was leaving, as he's become a part of the family and made tremendous contributions to the show. Robin laughed that she'd never forget how Isaac almost lost his mind while filming the "I'm-Chained-to-Jeff-the-Drunk" special and Howard said he appreciated all of Isaac's efforts and was eternally grateful.
Isaac said he would miss every member of the crew, particularly Artie, who he considers a close friend...even if he did sleep through his wedding. Isaac also told Robin that he'd seen her many sides and loved them all. Isaac then commended Howard's commitment to the show, and Howard, in turn, wished Isaac the best of luck - and told him not to let the door hit him on the ass on the way out. Artie wondered what the chances were that they'd ever see Isaac again, and Howard laughed: "Probably never."