My cat is an asshole, he barely puts up with the little, older dog. He torments the hell out of my younger, bigger dog. Just yesterday, he swatted the dog's nose and drew blood.
Before that, my late cat was alpha of the house and would prove it whenever he could. He would duke it out with both of my dogs whenever he wanted.
My cat resting on my dog’s back. I thought she’d grow out of it. ( i.imgur.com )