As your teacher continues explaining a lesson that you don't understand, you idly open your math textbook and flip the pages.
One of the pages doesn't drop all the way down. In fact, it springs up slightly. You open the book wider and see a folded piece of paper inserted into the gap between pages. You've performed this time-wasting ritual many times before, and are positive you would have found the paper before now. Has someone been through your things?
Curious, you open the paper. It's a note, addressed directly to you.
Your wish for something more interesting is about to come true. Imagine that you can change something about your life. Anything, no matter how large or small, can be changed. It can have something to do with your body, or people you know, or the world around you. What's more, you will be the only one who is not oblivious to the change. The world and everyone in it will exist as if what's been changed has always been that way.
Write your wish below, sit back and enjoy. Feel free to make as detailed a wish as you want. If you aren't satisfied with your wish, you may rip up this paper to undo the change and return your life to the way it was before. You are granted only this one wish, so wish carefully.
Your mind races with possibilities. Part of you doesn't believe this is for real, but still can't explain the coincidence of the paper's appearance just after your wish from a moment ago.
You look up at the clock. Still fifty minutes left in this class. That's a lot of time to kill. Plenty of time to come up with a great wish that could change your life.