I'm a police officer and occasionally park my cruiser in residential areas to watch for speeders. One Sunday morning I was staked out in a driveway when I saw a large dog trot up to my car.

He stopped and sat just out of arm's reach. No matter how much I tried to coax him to come for a pat on the head, he refused to budge.

After a while, I decided to move to another location. I pulled out of the driveway, looked back, and learned the reason for the dog's stubbornness. He quickly picked up the newspaper I'd been parked on and dutifully ran back to his master.