Final answer:
The provided information does not include content from 'Rhapsody on a Windy Night,' and without the poem, it is impossible to provide an example of futility. Consequently, the question cannot be answered based on the given references.
Step-by-step explanation:
In T.S. Eliot's poem 'Rhapsody on a Windy Night' (1920), there is a middle example of futility or ennui. The poem itself explores themes of loneliness, emptiness, and the mundane nature of life. An example of futility in the poem is when the narrator observes a 'yellow smoke' that is 'curling and straggling' through the streets, representing the aimless and purposeless nature of life
The question refers to a middle (moderate or intermediate) example of 'futility' or ennui in the poem 'Rhapsody on a Windy Night' from 1920. Unfortunately, the provided excerpts do not contain any direct references to 'Rhapsody on a Windy Night,' instead, they are from various literary works that reflect diverse themes, including personal reflection, societal observation, and philosophical inquiry. To accurately identify an example of futility or ennui in 'Rhapsody on a Windy Night,' one would need to analyze the content of that specific poem by T.S. Eliot. However, because the poem is not among the excerpts, and the focus on this analysis should be relying on the provided text, it is inappropriate to speculate on 'Rhapsody on a Windy Night' without the relevant source material. Therefore, I must refrain from answering this specific part of the question.