A young guy finds a magical spell that grants him 1 wish! He thinks carefully about it, and then asks the incarnation of the spell to give him the power of flight. Knowing how sometimes these things turn out, he specifies that he doesn't want to be turned into a bird or something, cause you always have to specify. Unfortunately, he didn't specify enough, and the spell instead turns him into a bat. Hey, this sounds like an absolute win to me honestly!