Pets for Rent? I'm one of those people with no time. I couldn't take care of a goldfish let alone a dog or cat full time without going nuts. But even if I'm a prime candidate for this pet renting service, I wouldn't touch it with a ten-foot pole. For me, this is less about the animal's welfare and more about personal responsibility. If you're going to take care of the pet--take care of the pet. Don't dangle it about like a piece of flashy but borrowed jewelry. If you really want to try out owning a pet before actually getting one, try pet sitting first. Besides, pet renting just smacks of dabbling. And I have very little patience with unserious dabblers of any sort.
Addendum: Maybe someone might start the argument that blogging is dabbling. Well, I'm not dabbling at blogging. I haven't quit yet, have I?