I have the same problem with casey when she is on her bed she growls at some small children and of course they run to the bedroom to see her so I have to be really careful. The funny thing is casey is really good with my daughter, but my daughters friends sister who is 9 with downs syndrome she snarled and snapped at...I was very concerned after that and the mom is careful not to let her run to the back of the house looking for casey now.