1) Dogs like humans.
2) Dogs are always glad to see you, no matter how late you are.
3) Dogs are loyal to their owners.
4) Dogs can be trained.
5) Dogs don't care what you look like. (And they appreciate body hair.)
6) Dogs make you exercise.
7) Dogs don't correct your stories.
8) Dogs don't criticize your driving.
9) Dogs enjoy the way you sing.
10) You are always good enough for your dog.