You're riding your skateboard down the sidewalk, minding your own business, when you hear a ringing noise coming from the phone booth at the next corner.  As you roll onward, the ringing becomes more insistent, like it's ringing just for you.  You hit a stone on the sidewalk and your skateboard skids to a stop right in front of the phone!

Tentatively, you reach out and grasp the receiver. "Hello?" you hesitantly speak into the mouthpiece.

"Geez, what took you so long to answer?  I thought you'd never hit that stone and pick up the phone!"

"Who is this?"  you ask with curiosity.

"I know you won't believe this, but I'm YOU 20 years in the future!  You've got to listen to me!  I need your help and you are the only one who can save me.  I've got a miserable job and I hate where I live.  You've got to research careers and find one that you can be happy with so that I will be content in the future,"  says the voice of future you in a rush of explanation.

"Wow!" you whisper to yourself.  "I had never thought about how a job would make me happy or how I might have to live somewhere besides with Mom and Dad."