#redditstories #askreddit #aita #siblings #family #behavior #confrontation #advice   Summary: A relative began behaving improperly toward my younger sibling, and his increasing actions led to a confrontation. Seeking advice on how to handle the situation.   Tags: redditstories, askreddit, reddit, aita, tifu, siblings, family, behavior, confrontation, advice, relative, improper behavior, younger sibling, family dynamics, conflict resolution, support, community, personal experience, relationship advice, confrontation