I kinda like this idea ...
Also not sure if this option isnt allready present, but i would love to see there some dialog options to switch places ...
Like, now you stand here and i will do the same favour for you. (For example, persuation diceroll Dif.10)
And then i would love to see two options:
1) Aim for back - hit him hard. (And gain Loviathar favour)
2) Aim for head - kill him instantly. (And lost it

)