I once had a number that was only a digit off from the local pharmacy’s phone number, so of course we frequently got calls for them (and, likely, they got plenty for us).
But one day, I got the call that took the cake…
The phone rang, and I answered.
There were about two beats of silence, followed by uproarious laughter.
It was my then-husband. He had been trying to call the pharmacy and had, what-do-you-know, called our number instead. :wally
On a related note, I keep hoping I will run into the guy from whom I bought my house a year ago so I can tell him “Dude, if you’re going to get gay porn videos from a guy called Crazy Benzi (“I will not be undersold!”), you really should take five minutes to fill out the change of address form!”