I don't have a picture of him, but there was a dog who lived in a corner house on my way to work one year in Istanbul. For weeks, every time I passed, he was there sleeping curled up in a perfect ball. I started calling him "Dogball." One day, he was awake and trotted out to greet me. I'd pet him and when I tried to walk away, he'd try to get in front of me and push his head against me to get me to stay a little longer.
My Dogball ritual continued almost every day for months. I used to give people directions to my building by telling them to go down X road, turn left at Dogball's house...
The next year I moved so I didn't get to see him anymore. Good ole Dogball.