Wrong Number

My phone rarely rings. I don't even know why I have a phone most of the time. If I could have something that just sends out text and picture messages and surf the internet, I'd be fairly happy, I think.

So when my phone does ring, I usually need to answer it, and it's usually someone I know. That's why normally I don't answer my phone if I don't recognize the number.

This weekend I had a missed call from a St. Paul area code - they didn't leave a message, so I didn't call back. Today, while I was waiting for my car to get its tires rotated and oil changed at the dealership, I got a call from that same number, so I answered it. Some kid, who asked, "Uhh, who is this?" Well, you called me, kid, you should probably have a good idea of who you're calling.

Then I get another call tonight from an unrecognized, but local number. What the heck? I'll answer it, it could be something important, right? Nope.
Me: Hello?
Kid: Mom?
Me: Nope, you've got the wrong number, sorry.

So, do I go back to only answering my phone if the person calling is in my phonebook, and therefore, a recognized number? Or do I answer the phone every single time, when 90% of my incoming calls are wrong numbers because people forget that there are more than two area codes in the Twin Cities?