Your story truly resonated with me. I was the proud and loving parent of the most amazingly healthy border collie, Zoe. She redefined the meaning of "life force." Same as you, I fed her only premium kibble and human food, consulted our vet regularly, provided daily exercise fitting of a border collie, tons of 'field trips' for her social needs and so on. After a bad reaction to a lepto-parvo vaccine (at age two), I switched to titering her annually and never had to subject her to another vaccine (except for the required-by-law Rabies shot). Anyway, we had a very bad year with fleas and I resigned myself to applying FrontLine that summer (four times) and K9 Advantix the next summer. The following November, with no warning, we learned that she was consumed with cancer and that there was no treatment. I had taken her to see four different specialists (as recently as the same week that she died) for a single toe nail that was not healing from an injury. No one was looking for cancer in this happy dog. I then brought her to an internist and was assured that she had simply been on the wrong antibiotics. The next day I brought her back to the same practice, insisting that they take another look. Xrays and an ultrasound revealed the truth. We were referred to the reknowned NC State Vet School. Her cancer was too far advanced for any form of treatment. We could not even bring her home with us. Time was of the essence. She was euthanized the next day and I still miss her beyond words. I have been on a mission ever since to NOT subject our other rescue dog, Max, to ANYthing that might ultimately kill him. He is on a grain free, human grade dog food and a number of supplements. I withheld Interceptor during the winter, resuming at the first sign of a mosquito (after a blood test). Last year was a never ending battle with fleas, using every holistic product I could find. Nothing worked (externally applied or taken orally). So I am so very ready to try the Triple Sure product. In North Carolina, we are about to begin the flea and tick season. I will report back sometime down the road after using this new product. So sorry for the loss of your beloved pets... Linda