Yeah, but there is a certain amount of pleasure in meeting people, dating a few, dumping a few, and then finding a special person that does "cut it". For animals, it's easy. They don't want a partner they can stand, they want one which will provide a healthy litter. That's it. For us humans, it goes farther. You have to spend the rest of your life with that person, so you'd better have it right the first time.