Well, I once stupidly miscalculated the amount of time I had to cross the street, and bolted out in front of a car that was moving much faster than I'd anticipated. I literally flew back several feet into the air, performed a slick little twist, rolled once, and landed right on my feet. The driver was totally shellshocked, and asked me if I was a stuntswoman, which stroked my ego tremendously. He kept insisting that he bring me to the hospital, but I refused, because I didn't want to ruin my evening and spoil my chances of getting laid that night. :P
Any skill I may have exhibited in terms of aerial acrobatics was likely a result of the years I spent diving competitively. Diving really primes your kinesthetic memory.