I am in a multi residences community that has a weight limit for dogs. This company has provided 2 soon to be 3 owners with SD certification . One trained dog has viciously attacked one small dog and lunged at another, he doesn't heal, sit, lie down or exhibit any training behaviors and has never been in any facility long enuf for training . T he owner engages in many activities that do not include the help of this SD. The second dog just got training without going anywhere is 12 years old and deaf! What a mockery of a program with a definitive purpose and an insult to people with a real need for an S D! .