Warning: This is long, but worth the read and the drawings are priceless---I laughed out loud!
It will make you happy that you have purebred Labradors. Many people like to point out the superiority of mixed-breed dogs and look down on purebred dogs as being "overbred" and the breeders of these dogs as being criminally insane. This blog definitely sets those misconceptions straight by telling a humorous tale: http://hyperboleandahalf.blogspot.com/2010/11/dogs-dont-understand-basic-concepts.html
