The first year I lived in the house I live in now, we used to get a lot of calls of people seeking a physical therapist whose office used to have the same number.
Most people were apologetic when they realized that they reached the wrong number, but I had a few get nasty with me as if it was my fault the doctor disappeared or got a new number.
One such scenario:
“Hello?”
“Hi, I’d like to make an appointment with Doctor–”
“Oh, I’m sorry, but this isn’t his number anymore. I’ve gotten other calls from other patients, but apparently he has a new phone.”
“What?!”
“…this is a residential number, now.”
“Well what’s the new number, goddamn it?”
“I’m afraid I don’t know. I didn’t even know a doctor had this number until people like you called.”
“People like me? What the fuck’s that supposed to mean? And you should have his fucking number to redirect people.”
[y'know, as if it's my job to keep tabs on other peoples' doctors, or as if i'm a secretary. hah.]

Hehehe.. heh..

bad joke. -_-

Amusing but frustrating I imagine. I hate it when someone calls me and it’s not for me in the first place. It’s awkward and annoying. Imagine it being a brothel. Well you don’t have to imagine of course.