He's rather arbitrarily chosen four o'clock as his personal Götterdämmerung, and we are about to watch the metamorphosis of a twisted fanatic, poisoned by the gangrene of prejudice, to the status of an avenging angel, upright and omniscient, dedicated and fearsome.
He makes phone calls to them and their employers at all hours, writes letters regarding their actions, demands their prompt firing, and threatens to involve higher authorities if they do not comply.
He also mentions that he has tried such feats before (trying to turn wheels into triangle shapes due to believing that evil uses public transportation to move).
(In the radio adaptation starring Stan Freberg, the ending was altered to be more gruesome as Pete the parrot mistakes the now-shrunken Crangle for a "nut".
)[1] At four o'clock, an evil man made his bed and lay in it, a pot called a kettle black, a stone-thrower broke the windows of his glass house.