So lowla (Dachshund/Rat Terrier Mix) has this stuffed tiger that's a bit larger than her that she likes to bite on the face and hump vigerously. She's been spayed since she was 10 weeks, she's now a little over 6 months. At first I tried to stop her from humping it and then I got so tired of pulling her off it that I just gave up and now I let her do it to her hearts content. Sometimes she gets so into it she's grunting and panting afterwards. Is my dog weird? Should I stop her from doing that? Is she trying to mate with it or is she just dominating? She doesn't hump anyone or anything else, just that tiger. She never grabs onto it anywhere else, just bites its muzzle/face and goes to town.