How important are they really? I mean all a breeder can do is look at health screening for the two dogs they are breeding and the dogs in their pedigree. If you see the documents, do you really need the guarantee? Has anyone here ever had to take advantage of it? How did it work out? I've seen so many that include exceptions and require you to return the affected puppy, that they don't seem to be of any value. I know myself pretty well and I could never return a puppy, never! I fall hard and quick. I was crazy about Bailey after spending 15 mins w/ him at the shelter. I was absolutely nuts about Booger by the end of the weekend. Same goes for Harley and the other cats.