Episode: If You Knew Susan. Simon's unpretentious younger sister Susan comes to stay and Simon is perturbed that she likes Oliver and starts going out with him. He offers Oliver a bribe to stop the relationship, unaware that Oliver has learned that Susan only wants to be friends as she has contacted her former boyfriend and has accepted the fact. Oliver uses Simon's ignorance to obtain a coveted figurine at a knock-down price though neither intended that they would end up in a restaurant being romantically serenaded.