I sing to my dog. There's nothing he can do or say about my mediocre voice, my awful tone or my inability to carry a tune beyond one verse, so I subject him to regular bouts of my warbling.
When we used to live in an apartment and we had to drive into a car parking garage, I would sing to him as we wound around the floors (we always parked on the top).
"Home again, home again, jiggity jig"
That's it. There's no verse, no story, just a phrase from a nursery rhyme repeated for six floors.
As we are in summer now and he is doing that thing that dogs do, he often gets the ditty below, to the tune of Love Machine:
"You just a shed machine
Shedding yo' hair all over the place
You just a shed machine
Shaking yo' hair right into ma face."
Then if I feel like torturing him for no reason, I break out the Janet Jackson.
"Nasty! Nasty dog, don't mean a thing!
Oh you Nasty dawg."
He just looks at me, and sometimes he just walks away and goes and does something else.
Can't blame him, really.