18. Right after college, Donnie received a large sum of money from his wealthy father to start his own business. This was the first of many business ventures, many of which failed. Despite his failures, Donnie came to believe that he was the most successful businessman in the country--and he insisted that people around him treat him that way. He began publicly attacking people who questioned or criticized him, and insisting everyone loved him, despite large amounts of evidence to the contrary. He began taking on jobs he had no qualifications for, convinced that he alone could do them perfectly. Which personality disorder does this sound like?