Sam has been real receptive toward me. Both want my attention. Riley seems to particularly get stirred up if I am petting Sam. Sam has growled at me about three times, a very low growl. It happens when I am getting ready to leave. I put them in the office with no problem. Then I close the gate and when I try to pet him goodnight he does this low growl. I just say goodnight and leave. Other than that, no growling.