This is a true story.
Johnny Carson was a famous host of a late-night TV program. He was the host of the show called “The Tonight Show”. He used to bring lot of famous people and interview them. You can see many of his programs in YouTube. Once he interviewed a person who was named best salesman in the world. Here is how the conversation went.
JC: I understand you sold more than any other salesman this year at your firm. How about you sell me something?
SP: What do you want me to sell you?
JC: (Looks around and sees an ashtray) – Sell me this ashtray.
SP: Why would I sell you this ashtray?
JC: It is good looking. It is useful thing to have around. Lot of our guests use this.
SP: How much you think this ashtray is worth?
JC: I don’t know may be $199.
SP: Tell you what. You can have it for $50.
Nowadays, in some job interviews, stupid question like "sell me this pen/pencil" is asked. The candidate can reply similar to the above.
* There was no "salesperson" in those days. It was either a salesman or a saleswoman.