Imagine, you are having a peaceful nightly slumber. At sometime during the wee hours of the very early morning, you hear a ruffle of leaves. You are woken out of your sleep. When you crawl out of your blanket and glance towards the window, you see the shadow of an eight-legged creature crawling up the window glass. There, your eyes are wide open, your heart skips a beat and you jump out of your skin.
Or Imagine, you are in the middle of a thrilling horror novel, where the Captain of the troops is crawling through the forest, to get a closer look at the enemy camp. Suddenly a bomb explodes and your calling bell rings. Here too, you jump out of your skin again.
There are many possibilities for one to jump out of one's skin. But look at what our favorite hero does and at what he intends to do later, with his skinless self.