May I help you?

All right, this drives me crazy. It's happened several times at work in the past couple weeks, as well as off and on throughout my life. Let me preface this by saying that part of my job every day is to schedule appointments over the phone with people who have requested that I call them. Okay, so here's what really chaps my ass. I'll call the number provided - often a cell phone - and no one will answer. So I wait through the outgoing message and prepare my little schpiel about the job we can do for them, wanting to set an appointment, our phone number, yadda yadda. But here's the kicker. As I'm leaving the message, a call comes into the office from the number I have just called...I know this because of caller ID (don't tell the customers we have that in case I want to avoid someone once in a while). So now I'm all rushed because I don't want to hang up mid-message on this person, but I wanna get the other line before it goes to OUR voicemail, so I hurry through it and click over to the caller. Here's what follows.

Me: Good morning/afternoon, (Name of company), this is Anne, may I help you?
Them: I just got a call from this number...who is this?
Me: (Name of company)
Them: Who?
Me: (Name of company for the third time)
Them: Did you just call me?
Me: And who the hell might you be? (not really)
Me: Well what is your name, ma'am/sir?
Them (coldly, as if it's usually a secret): So-and-so.
Me (acting pleasantly surprised): Oh yes, hi, thanks for calling, I was just leaving you a voicemail.
Them: Mm-hmm.
Me: Uh, well I was calling to schedule....................

Really? Are you kidding? What is that about, some kind of power trip or something? They won't talk to you if you call, but by golly you better answer when they do? I get not answering your phone if you don't recognize the number - I sometimes do that - but why then would you immediately call it back? And I mean immediately, because my voicemail message would have registered in the next 30 seconds. I also understand not answering if you're in the middle of something, but clearly these people aren't because, again, they call RIGHT back. I don't know, it just makes me bonkers. *sigh*