Reminds me of the battle my father fought with the neighbour's tom cat many years ago. My father had a succession of "Auntie" Rovers during the '60s and '70s and the car was usually washed and polished on a Sunday morning. After lunch the old man would often be heard cursing the cat who would regularly 'annoint' each of the four super shiny hubcaps whilst dad was having his Sunday roast.
Dad's theory was that it could see it's own reflection and either took it to be another cat threatening its terretorial rights or it just liked looking at it's own backside!