At five months old they start losing their teeth,so the biting is normal.Sometimes they can seem desperate,even rough,but it should pass as soon as the adult teeth come through.Until then give him plenty of toys to chew on and try to keep him away from your hands and feet,those baby teeth really hurt! lol.About having him fixed,I deffinately would do it before he starts getting bad habbits,like lifting his leg..and if you breed him,even after having him fixed,the leg lifting may never stop.Breeding males as a rule do not make good pets.I have been told this by ALOT of breeders on other boards.Some breeders have to keep their males confined because they are constantly marking their territory.Its said that some boys dont mark even though they are not fixed,but as a rule they do and its a habbit hard to break once it starts..and if fixing is left too long,it may never stop.Tell your husband that his boy doesnt need a fling as he wont miss something he has never tried and once he is fixed he wont even feel the urge
