That didn't make much sense. My Lilly has not played with toys for several years. However, she has gone wild the past few weeks and has become extremely energetic, renewing her interest in toys. The thing is, when we play tug. she growls a little. She shows no other signs of agression, her eyes are sparlkling and playful and her tail is wagging a million miles an hour. She usuually does this from the "play bow" position. If I say anything to her, she stops and she always releases the toy immeadiatly on command. It just seems like she gets so excited she has to make some noise. Should I be worried that this will get worse? I don't want to wait until this is a big problem, but her behavior is so normal otherwise.