Identify instances in the story in which you find streaks of insanity in people other than Hagberd. What implications do they suggest?

1) I found insanity in barber as he was doing insane judgement on old Hagberd without knowing full truth and mocking. (Insanity also refers to irrationality and barber was irrational with his judgement)

2) The insanity in Mr. Carvil nature as he over reacts when he need something and shouts loud.