My dog makes the best face when he pees in the morning. He squints his eyes and his tongue rolls out the side of his mouth as he sprays the grass. Then he lifts his head, and his jaw opens a little more as that last drop comes out. If he could talk, I’d imagine him saying “ahh yeah, that’s it.” It almost looks orgasmic, but he has no idea what that feels like since I cut his balls off when he was a puppy. Sorry, dog.