I don’t know whether this has ever happened to you, but occasionally I used to get calls for a business whose number was close to mine. I just would tell people “I’m sorry, you have the wrong number.” and hang up. However, Mark Evanier had a difficulty where a local art gallery commissioned an advertisement where their phone number was misprinted—as Mark’s number. He spoke to the art gallery and got the advertisement’s next printing pulled, in a most ingenious way.