I've been testing out all the random encounters since finishing Part 3 and I've thought of something. Since Hiroshi could potentially get captured or eaten in the classrooms in a random encounter, I've thought it might be interesting if there was a random chance that, in the event that it occurs in Minori's Classroom, Minori will step in and save you from the random schoolgirl when she overhears her talk about her "new pet". Since she genuinely cares about Hiroshi's safety, I feel it'd make sense for her to intervene and warn him about the dangerous of being careless while tiny.