S4E15 · The One With All the Rugby

Complete story — includes the ending

Ross risks life and limb in his desperate attempt to prove to Emily how tough he is by playing an aggressive game of rugby with her athletic British friends. Monica becomes obsessed with a wall switch in her current (previously Chandler’s and Joey’s) apartment which appears to have no function. She resorts to every possible measure in trying to determine the switch’s origin, but to no avail, so she eventually gives up. Unbeknownst to her, the switch actually controls the television in her previous (now Chandler’s and Joey’s) apartment. Chandler runs into Janice during a manicure session with Rachel and goes to extreme measures to avoid her, which include telling her that he is being transferred to Yemen for work.