Li Xia and her colleagues co-rent a high-end apartment. At first, she was happy to share daily necessities, but her roommates took her contributions for granted. After realizing that her boundaries were continuously violated, Li Xia did not blindly compromise and concede; instead, she rationally signed a responsibility agreement to clarify public and private boundaries. The roommates ignored the rules and neglected to maintain the living environment, ultimately leading to the serious consequence of property damage. Li Xia successfully extricated herself by relying on reason and evidence.