First off, metagaming (trying to influence future games in this one) isnt exactly what I call good maneers. Other than that, scorched earth has absolutely no reason; I hope you dont expect me to turn back and return your capitol because of some black servants?
Second, when it comes to me, the effect will be just opposite - if anything, I will perceive such player as an enemy in other games too.
And third - no, I dont have to admit it.
Bogarus is quite well-suited to counter such tricks.