Final answer:
The text provided does not directly address Milo's plans to butcher Henrietta. Instead, it focuses on Bernice, who feels pressured by her peers to get a haircut, a situation that is metaphorically compared to being led to the guillotine.
Step-by-step explanation:
The class's reaction to hearing about Milo's plans to butcher Henrietta is not described in the provided text, but the narrative does depict the tension and drama of a different character, Bernice, facing a challenging situation. The provided text, instead, focuses on a scene where Bernice is pressured by her peers, particularly Marjorie and Otis, to go through with a daring haircut. The sentiment of the group can be interpreted through the dialogue and actions, such as Marjorie's contemptuous challenge and Otis's encouragement. The description creates an intense atmosphere, akin to the somber mood felt by someone facing the guillotine, which is how Bernice imagines her situation as she prepares to enter the barber shop.