i think that it could be done, like in the oridional runescape that when your created lets just say that there is a implant or something and you wont be able to pk or be pked. you could viset any town doctor to have it removed, and then you could pvp. you could also, after this get it put back in, but it starting at 15k for the first time so it would not be practicle for it to be done alot