I kinda like takin' 'em out from a distance, myself... with a bow, I mean... and shooting the knee only makes them cry and draw attention... headshots are still best.
When sniping isn't a possibilty, though, I
do love me some *sneakysneakybackstab*...
In either case, just because I'm harvesting human souls doesn't make me evil... it's the gleeful looting of their corpses and homes after I've killed them that does
that.
P.S. Please note that
all souls that I harvest are put to good use... grand souls and better can charge the heck out of all those nifty enchanted weapons.