I have an elbow that bends the wrong way, and I'd do things like stand in an elevator and the doors would close, and I'd pretend that my arm had got caught in it, and then I'd scream, 'Ow, ow, put it back!'
During the many centuries that magic, here on this planet, was presumed to have worked, there were at least as many theories as to how magic worked as there were cultures and religions.

