Final answer:
The snippets provided don't directly answer how Milo's dad reacted to asking for an extension to kill his specimen, but they offer a glimpse into various examples of family dynamics and parental responses to challenging situations within literature.
Step-by-step explanation:
The request to kill his specimen does not seem to be directly addressed in the given snippets. There is no explicit mention of a character named Milo asking for an extension. However, the character dynamics and the theme of handling life situations are present in the excerpts. Notably, the segments reflect family relationships, responses to challenging events, and conflicts between parents and children. For instance, there is a notable scene where a father and his son Peter discuss the possibility of locking up the nursery due to inappropriate use, highlighting the tension between the need for parental control and the children's desire for freedom.
The exploration of these themes is critical, as they contribute to the understanding of character development and the narrative arc within the literary work. Deep analysis of these parent-child interactions can reveal critical insights into the psychological and emotional landscapes of the protagonists.