My phone number for the last almost 10 years has been 1 digit off from a local pharmacy.
If I had a nickel for every wrong number we'd gotten over the years I'd be a millionaire. People will even get rude with us when they can't refill their prescriptions.
Our answering machine started with the usual message about you've reached the xxxx, please leave your name etc. People would listen to the whole message and then leave a message about getting a prescription.
Then we changed it to you have reached the xxx NOT the pharmacy. If you are trying to reach the pharmacy, please hang up and try again. People would listen to the whole message and then leave their message about a prescription.
Now we have my daughter saying a rhyme with our name in it. We don't get many messages now on the machine.
With caller-id we know have a good idea when it's a wrong number. Of course there is one lady who calls us at least three times a week. Now when she calls, I say hello Shanta, you've got the wrong number for the pharmacy. Have a nice day.