The theory that encountering the 'Sand-Throwing Old Woman' in your room is the worst scenario, and more

The theory that encountering the 'Sand-Throwing Old Woman' in your room is the worst scenario. ▼ A rude hitchhiking race where you assess the used car purchase price of a car that stops for you, and can only move forward based on that amount (1 million yen = 10 km)...