An elderly man, having just turned 80, needs to renew his driver's license. His family, concerned about his advanced age, contacts the engineer who is supposed to administer the renewal exam, and they convince him to do everything possible to ensure the old man fails. On the day of the renewal, the elderly man shows up, and the engineer begins to pose tricky questions.
First question: "If you see a small light in the night coming towards you, what do you think it is?" The old man replies, "A bicycle!" The engineer: "I see, but what brand? Atala, Bianchi...?" The old man: "Well, I wouldn't know."
Then the engineer asks the second question: "If you see two lights in the night coming towards you, what do you think they are?" The old man: "A car!" The engineer: "I understand, but what brand? Fiat, Audi, BMW...?" The old man: "Well... I wouldn't know."
So the engineer asks the third question: "If at night you see two big headlights coming towards you, what do you think they are?" The old man: "A truck!" The engineer replies: "I get it, but what brand? Scania, Iveco, Mercedes...?" The old man: "Well, I wouldn't know..."
Then the engineer says: "I'm sorry, but I can't renew your license..." As the old man leaves, he turns to the engineer and asks: "Excuse me, engineer, but if you see in the pitch black of night a tire burning and partly a half-naked woman twirling her handbag, what do you think it is..." The engineer responds: "A whore!!!!" And the old man: "I see, but who... your wife, your daughter, your sister....."