6x05 "The One with Joey's Porsche"

Rachel forces Ross to get an annulment, but Ross is unwilling, as he doesn't want to get divorced for the third time. When Rachel finds out that Ross didn't get the annulment, in retribution she fills out the form saying Ross is gay, mentally unstable and addicted to intravenous drugs, resulting in the judge (Conchata Ferrell) disallowing an annulment, which leads to Ross and Rachel, both disgruntled, seeking a divorce. Ross is miserable about now having three failed marriages, but cheers up when Rachel confesses that getting married was her idea. Joey pretends to be the owner of a Porsche whose owner left its keys in Central Perk. Phoebe babysits the triplets and ropes in Rachel and Chandler, but Chandler swallows a toy gun and has to be taken to the hospital, leaving Phoebe alone.