You drop the short distance to the top of the wall. You stare in amazement as you sit back on your hind paws. Why is the wall six feet thick here? That's when you realize you've got more peripheral vision then you should. You look down at your body and realize that you've lost your clothing somewhere. You're completely fur covered with bushytail.
You chatter as panic tries to take over. That acorn wasn't the size of a watermelon. This wall isn't six feet thick. You've shrunk to the size/shape of a normal tree squirrel.
Your squirrel instincts tell you to leap back up that branch and to the safety of the tree! Your human side reels in disbelief as it takes hold for the moment. You can't be a squirrel! It's just not scientifically possible for a human to suddenly transform into a nut cruncher! Your eyes bulge in sudden realization. This is how the zoo has been able to get so many different species in place so soon!
You droop your tail. If you have to be a victim, why couldn't you have transformed into something more exotic than a freaking tree rat!
Your stomach growls at you again. Your squirrel side wants to go back and get that acorn. Your human side wants to try and escape.