I really think you have to nip that in the bud! Its not cute and will only increase... Meka would growl at my daughter (5yr) and try to nip at her fingers if she touched her. She was basically trying to assert her dominance over my daughter because she know's that she cant w/ DH and I. It really can become a bigger problem, and I would hate to see anything happen to your toddler (i.e.: bites, scratches or whatever). Hope this helps