The household goes on suicide watch when a new tenant, the depressive Mr. Gray, who has lost his wife and his business, becomes Rigsby's latest tenant. Ruth switches tea-cups with him when she sees him drop a tablet in his but it is only saccharin. Mr. Gray's behaviour leads Rigsby to get a man from the Samaritans to visit. Firstly he thinks Ruth is the depressive when he sees her with her head in the gas oven - which she is trying to fix. Later Mr. Gray climbs on the roof and Rigsby, to impress Ruth, goes up to talk him down. The Samaritan then assumes he is the ...