That is so sad..... I picked up a Golden Retriever/Lab mix on Friday running loose by the airport. Full collar and leash attached. Called the vets and Qaws, took him to be scanned for a microchip - but no luck. He is fully domesticated and well behaved. Maybe 10 years old. How can no one be looking for him !!!! It is terrible to think he could have been dumped. For now we are fostering him and I still hope his owner pops up. GOOD LUCK with your dog. I truly hope someone claims him. There are so may Suluki mixes running loose.