When I was growing up my parents owned a dog boarding kennels in Shoreham, so with 100 or so dogs around all the time we got quite a variety of names. One thing always struck though, whenever you had a dog get famous on the TV, after a few weeks you would get inundated with dogs of the same name - admitedly this is going back to the 70s, but at one point we had loads called "Freeway" after the pooch in Hart to Hart and later there were loads of "Bouncers" (neighbours).
Just no originality, some people. Had to laugh the other day though when I heard some scruffy woman calling her dog "Aquarius" - ridiculous.
Having a vague interest in Astronomy, I always thought, that if I ever bought two dogs, I could call them Castor and Pollux. I just fancied going up the park and shouting "POLLUX" at the top of my voice
We wanted to call our dog 'Gary' but couldn't because my brother-in-law doesn't get on with his neighbour also called Gary!
If I had a staffy which I wanted I would have called him Bowser.