[quote=@Memory]
<Snipped quote by Audacious>

*Snaps*
Best in [i]all[/i] the worlds.

<Snipped quote by Yatagarasu>

[i]Huh.[/i] Amazing, I take it back, I was wrong.
*Listens, enamored with the lesson*
What if you knocked someone out before killing them? What would happen to their soul?
[/quote]

Typically that'll do insignificant 'dimming,' just barely enough to be notable. But most types of souls recover from that pretty quickly, even outside of the body.