On the first point I mean that a semisapient being would be able to think, but wouldnt have morals or the ability to understand evil. so if given a command to destroy evil it would kill anyone it assumes is evil.
2.what? how the hell would a sword be able to remove a mouth. maybe a pair of needles and thread. but a sword? that said giving a sword a command to "obey" wouldn't really have a morals clause attached to it. becuase assuming that the sword wouldn't be able to understand human morality, it would be up to the weilder to decide what it does. I can see how this could be abused by the weilder, but would having a sword that can kill anyone who goes near it be any better? the best thing to do would be to not create one in the first place. but if one ius created I'd rather want to tell it to shut up than listen to constant nagging about destroying "evil".