When you think of the relationship dogs and postal workers have, you cringe. Chewed off pants, bitten arms and legs, these are just some of the things that come to mind. But it seems like some dogs are more partial to brown than blue. Just ask Sean McCarren, who has been working as a UPS Driver for almost two decades now and hasn't run into a pooch that he didn't like and the feeling seems to be mutual. So, McCarren decided to create a Facebook Group page to allow other drivers to share their photos of their favorite four-legged friends who run over to greet them whenever they stop by to drop something off.