What qualities of Ugline Barrows character make her so offensive to Mr. Martin

Mr. Martin despises her large and commanding presence, her loud "quacking voice and braying laugh," and her habit of repeating the colorful phrases of her favorite baseball announcer, Red Barber. When she reports Mr. Martin's shocking threats, Fitweiler does not believe her. Instead, he summons a psychiatrist. In a rage she screams accusations at Martin, confirming Fitweiler's belief that she has gone mad.