Aboard the plane, an annoying extension cord salesman named Warren Beach (Garry Marshall) does little to assuage Monk's fears. Monk quickly becomes suspicious of Stefan Chabrol after he notices that Barbara no longer needs to stand on her toes to kiss him, has "forgotten" that she ordered the vegetarian meal, knows nothing about air travel despite a frequent-flyer lapel, and claims to have "forgotten how to" speak French when an old family friend, Bernard, meets them on board. More digging convinces Monk he is on to something. Monk quickly annoys everyone and a fellow passenger informs Stefan of Monk's suspicions.