Tiny dogs

I had a friend who had a pug named Banshee. She was wild. Banshee always got so excited when he came home, that she would start running circles around the living room, gaining speed until she was hurtling herself from sofa to chair to floor to fireplace and back round again. Eventually wearing herself out, she would collapse on his lap and remain inert for a little while. We could pet her then, without her going deliriously nuts with joy from the attention.

Here's an animated short about the "cruel but really adorable world of underground pug fighting":