Funny thing about shock spells. They send your opponents flying. Oddly enough, if you hit your opponent with a shock spell, and then kill them with your sword, they also go flying.
Not knowing this at the time, I was in a bit of a scuffle with a giant on my unoriginal spellsword. I used some rockin' lightning spell on it, and then struck it one last time with my daedric sword. To my OMG, the giant was sent flying about 30 feet high, and then came crashing down.
All the times those giants sent Lydia flying sky high. Game 'em a taste of their own sick medicine. But yeah, that one was an OMG moment for me.