The next day the ghost was very weak and tired. The terrible excitement of the last four weeks was beginning to have its effect. His nerves were completely shattered, and he started at the slightest noise. For five days he kept his room, and at last made up his mind to give up the point of the blood-stain on the library floor. If the Otis family did not want it, they clearly did not deserve it. They were evidently people on a low, material plane of existence, and quite incapable of appreciating the symbolic value of sensuous phenomena.
from The Canterville Ghost by Oscar Wilde