I had a friend in college whose phone number was apparently one digit off from the number for the free clinic.
Her voice mail message was something like “Hey, this is [first name], I’m not here right now so leave a message.” Doesn’t sound much less the message you’d get calling a clinic, or any place of business, does it? But she got DOZENS of messages like “Doctor [last name that sounds nothing like my friend’s first name], my toe is all swelled up again! Why didn’t you call me back? It’s swelled up so big I can’t get on my shoe, and there’s this green stuff coming out! Why doesn’t this damn clinic ever return my calls?”
Finally she changed her message to, “Hey, this is [first name] at 555-1234, not the free clinic. The number for the free clinic is 555-1235. If you are calling for me, [first name], please leave a message. If you are calling for the clinic, please call 555-1235.” That helped, although she continued to get messages from the sick and confused.
“Hello? Is this the free clinic? Why doesn’t anyone pick up the damn phone there? My toe’s all swelled up…”