Originally Posted by
JellySlayer
To be honest, I just haven't tested it--I know it happens, but I don't know the specifics. I'll see if I have a lawful character kicking around with some herbs, a whip, and good piety, and will get back to you about this.
[edit]Tested this. It's extremely unreliable. With a crowned character at very close, I whipped the character hundreds of times and had it happen only a few times--I'd guess maybe 1% probability. You get the message "You feel remorse. You feel lifted of the dark spirits devouring your health."