Dogs don't want to know about every other dog you ever had. Dogs like to do their snooping outside as opposed to in your wallet, desk, and the back of your sock drawer. Dogs don't let magazine articles guide their lives. You never have to wait for a dog. They're ready to go 24 hours a day.
Dogs have no use for flowers, cards, or jewelry.
Dogs don't borrow your shirts. Dogs never want foot-rubs. Dogs enjoy heavy petting in public. Dogs can't talk. Dogs aren't catty.