This flash has a lil' of everything i would want in a story. Morality, Ethical choices, Choice consequence and of course Chaos Theory.
It has been said that something as small as the flutter of a butterfly's wing can ultimately cause a typhoon halfway around the world. (One of the many variations I've heard/read, I'm privy to this one though).
All in all: 5/5, 10/10.
Note* I think people could learn a lot from the symbolism of this story, the effects one's choices have on the mass majority of friends and loves ones, maybe even strangers.