Our cat has this habit of biting us and I cannot tell if shes ticked or if its a playful bite. We think she was taken from the mother at a very young age. Its not a hard bite but it can sting a little bit. The question us, how do we get her to stop biting and how do we tell a playful bite from a bite of aggression? She is a VERY playful cat. Shes less than a year old.