Martin, an ordinary middle-class man, is generally not harmful to those who serve him. He visits a paid restroom with poor service and becomes upset. However, instead of an apology, the cashier girl, embarrassed on her first day, takes the initiative to have sex with him. Martin, never one to turn down luck, accepts. Another visitor, intrigued but unsuccessful in joining, doesn't hold a grudge against Martin. The story highlights Martin's dual nature: his initial anger at bad service and his calmness when the situation turns unexpectedly favorable.