I have had my pug, Fei Lian (tiny lotus blossom) aka Lily since she was 4 months old. She is now 9 years old. Lily barks whenever she needs to go outside and a very good puppy. Ana Grey sound exactly like Lily's barks. Ana Grey loves to go to the plant stand by the patio door and bark like Lily. When I go to let Lily out, Ana Grey, takes off laughing as I go and find out that Lily is not there and it was Ana Grey imitating Lily's bark!!!!!!