You don't mention how old the kits are. Most kits do nip or bite. You can put Bitter Apple on your hands and feet. This is sold in a Pet Store where the dog stuff is. You can put the ferrets in their cage for a time out. You can also put Ferretvite or Nutri Cal on your hands/fingers. This is a vitamin suppement we give everyday. When they nip/bite you can scruff them, put them to your face and hiss and say No Bite. You can also scruff and hiss and drag them for a few seconds on the floor. Good luck and it does get better. Debbie [Posted in FML issue 2591]