i would never, never keep a dog that bit..never...or if by some strange reason i did keep the dog, it would be muzzled...its as simple as that..its now bitten twice...and he bit people that were NOT threats...so, this is why i say, if people want guard dogs they had better know what they are doing..because the dogs can end up biting innocent people... and,no way i would have a dog that bit around my children either...what if one of their friends come over to play...and he decides at that time he needs to "protect" your daughter aganist her friend?(he's already established that he will bite people that are not threats...) no way, sorry, its not worth the risk to me. and i would rather bring my pet i loved to the vets to get it done with me, then have him hauled off with strangers and be scared and then die that way.... i also have dogs (4 of them) and i love them very,very much and i would mourn and loose a part of me if they died....but, still, if one was a biter i would have to put him down...it would kill me though.