Final answer:
Miss Strangeworth never suspects children of laughing at her as she sees herself above criticism, which highlights her narcissism and self-deception.
Step-by-step explanation:
Miss Strangeworth in the story believes so highly in her own standing and moral superiority that the idea of children laughing at her seems unfathomable. Miss Strangeworth carries herself with an air of self-righteousness and virtue, which prevents her from even considering the possibility that she could be the subject of ridicule or mockery. The fact that she never suspects the children of such behaviors indicates she holds herself above reproach or criticism. This aspect of her character reveals a significant degree of narcissism and self-deception, as she is unable to perceive her own failings or the true nature of others' perceptions of her.