In "The Open Window," why is Framton Nuttel taking a trip?

Mr. Nuttels
peculiar name is very descriptive of the nervous condition from which he suffers. He seems to
have some sort of mental disorder that keeps him anxious and unable to handle stress. When he
describes his illness, he says, "The doctors agree in ordering me complete rest, an absence
of mental excitement, and avoidance of anything in the nature of violent physical exercise. Mr.
Nuttels sister suggests that he go to the country home of Mrs. Sappleton and soak in the fresh
air to relax his nerves. Unfortunately,...