Fearing what might happen if you stand around idly much longer, and desperate to escape whatever foul beast could be chasing after you, you look around wildly, trying to find some haven where you can escape your past.
"What past," you ask yourself. "What past? I can't remember a damned thing!"
Suddenly, you spy a giant oak across the meadow, about a hundred yards from where you're standing. As your hopes ignite, you make a mad dash for the tree. You notice that you aren't moving as fast as you'd like, and that your legs are itching like crazy. You pause for a moment and look down... your feet are covered in feathers! Wait a minute, so are your legs... and waist... and torso!
What the heck is going on?!