Dogs admit it when they are lost. Dogs don't weigh down your purse with their stuff. Dogs look at your eyes. Dogs like your size. Dogs do not care whether or not you shave your legs.
Dogs are color blind.
Dogs aren't threatened if you earn more than they do. Dogs are nice to your relatives. Dogs obsess about you as much as you obsess about them. Both take up too much space on the bed. Both have irrational fears about vacuum cleaning.