One night when you have a few friends around, take turns calling the same phone number, a really obnoxious acquaintance that won’t recognize your voices is always a good choice. When the person answers, try to leave a message for John Smith (or any name that sounds real). Insist that you have the right number and even read their number to them. Have a bit of fun here, and stretch this on as long as possible. Repeat several times, once or twice an hour. Let everybody have a turn at calling. Just as the party is breaking up, call one last time. Tell the poor soul answering the phone that you are John Smith, and ask “Are there any messages for me?” This is sure to get a groan.