Never have been a delivery guy, but eff that, you don't get your food if your dog is within 10 feet of the door.
I did have a paper route as a kid... got bitten too many times. I got bitten once in the front yard of a house where they wanted the paper in their door. Woman saw me get bit, I was bleeding from the arm, the dog had my blood on its chin. I asked her for some help, a towel or something, she says "why, my dog doesn't bite". Meanwhile, I have a gash in my forearm.
I went to the next house, asked them for help while delivering the paper. They told me the woman is psycho and they called the cops. The cops went over, talked to her, for some reason took her word, and she called the newspaper to complain. I got chewed out by my boss on the phone.
A week later, somehow, 4-5 windows in her house got smashed.
I don't throw rocks.