There's this one woman who has called my desk number on multiple occasions. One day she called here 4 times. YOU HAVE THE WRONG NUMBER. She was calling like a hair salon or something. This is a law firm. If you dial again, the number isn't going to change.
She called back a week later. Nope, number still hasn't changed.
My parents' phone number ends in a 6. There was a lawn care company whose number ended in a 5, and I guess on their billing statements the print wasn't very clear. We would get calls ALL the time... people would even leave messages on our answering machine "when are you coming out to do my lawn". Apparently they missed the "hello, you have reached the ____'s" when they called.