Shen Zhi deliberately parked her car crookedly for two years, actually to leave a thirty-centimeter turning gap for the illegally occupying car next to her. Her neighbor Sister Fang and others showed no gratitude, mocking her snake-like driving daily, throwing garbage, ruining her business deals, and wanting to buy her parking space at a 30% discount. In a fit of anger, she sold the parking space to retired road engineer Yan Gong, who parked so meticulously that all eleven cars were completely blocked. Armed with the as-built drawings, the Civil Code, and fire safety reports as a triple blow, the bad practice of illegal occupation lasting seven or eight years was brought completely under control. Shen Zhi finally understood that rules are the strongest backing for ordinary people.