What are the peculiarities in Uncle Khosrove's behaviors?

Aram gives his Uncle Khosrove as an example of the "crazy" streak he believes to run in his family. In order to illustrate this, he explains that Uncle Khosrove had a phenomenal bad temper and was extremely irritable and impatient, which meant that he would habitually interrupt people by yelling, "It is no harm, pay no attention to it." Uncle Khosrove would do this in even the most extreme circumstances, as is illustrated by the anecdote Aram then tells about the day Khosrove's house was discovered to be on fire. When Khosrove's son ran to the barber shop where Khosrove was getting his hair cut in order to tell him what was going on, Khosrove simply repeated his usual phrase: "It is no harm, pay no attention to it." This seemed so bizarre to the barber, given the dire circumstances, that he thought Khosrove might not have heard, or might have misheard, what his son said. When the barber repeated to Khosrove what his son had said—that his house was on fire—Khosrove simply cemented himself as a "crazy" person by repeating the exact same thing to the barber that he had repeated to his son: "It is no harm." Khosrove's impatience and reluctance to listen to anyone or be bothered by anything were such that he clung to his typical behaviors even in the most extreme circumstances.