Puppy Purchasing Scams

Here is another article about someone who paid for a puppy to be shipped to them without using puppy escrow, or some other type of Paypal/escrow type service. Surprise, the pooch never arrived, and the person is out their money...

http://www.wave3.com/Global/story.asp?S=4384193&nav=0RZF

Who do you think is at fault here?