So what if we replace the sound of missing someone with your attack, with a sound that implies that your swing only grazed his armor slightly, doing no damage?
The problem is that there is only one miss sound, so it would have to be generic enough to fit for 'missing' NPCs without armor, in light armor (leather), and in heavier armor (steel), and for 'missing' creatures.
And it would have to fit for all weapon types that are used to attack. And fists. Ugh...
Any thoughts?