I have a chihuahua. His name is Mercury - and he's quite Mercurial, too.
He frequently likes to come to me when I'm meditating or doing other types of spiritual practice - at such times he gets into my lap and sleeps. He seems specifically partial to my Pranayama practice. When I used to do it regularly, he'd always come over.
Now I don't know if this is because he is just a spoiled attention-seeking little ratty or if he likes the focused energy that gets generated during my practice. Now that you posted this question I'll pay some more attention to his behavior around my practice time and rituals etc.