despite repeated failures ,what traits of d ghost character make him try again and again 2 frighten d otises?

The Canterville ghost was amusing as well as pathetic because he tried too hard to scare people and was offended when he did not get the requisite reactions. He had the enthusiastic egotism of a true artist when it came to his most celebrated performances but the times had changed and he could not replicate his former successes with the modern, rational thinking Americans, that is, the Otis family. His celebrated performances of "Red Reuben, or the Strangled Babe," his début as "Guant Gibeon, the Blood-sucker of Bexley Moor," were all relegated to the past now while he had to reconcile himself with Mr Otis offering him the Rising Sun Lubricator to oil his chains and the twins throwing pillows at his head. He believed that no ghost in the history of supernatural entities had been treated in such an unfair manner. His consequent plans of taking revenge were eventually all thwarted and went awry. As it turned out, the human beings were always two steps ahead in beating him at his own game and he finally gave up, retreating into his corner in the Chase. He became a figure of ridicule but also an entity which evokes our sympathy and compassion because he seems more like a childish prankster in his endeavours to scare people than actually being a scary ghost.