Flying kicks are relatively rare when it comes to street fighting, and especially surprise flying kicks that you don’t even see coming. Probably because you need a decent run-up to nail one so really the only effective use for a flying kick is if it happens by surprise.
Here’s a solid example:
https://www.youtube.com/watch?v=QU0nPrcEiYI
I think it’s fair to say that had the desired effect. Guy got completely taken out of the game. Might even be dead for all we know. I find it’s better to remain ignorant about these things if you’ve got to blog about them. Can’t let things like manslaughter get in the way of a good fly-kick video.
I’m sure there’s also an argument for surprise flying kicks being a coward’s tactic but at the same time you can’t deny that looked pretty awesome.
P.S. Never forget – that dude who pulled off a Mortal Kombat Liu Kang kick in real life.