It is known to humans that mans best friend, the dog, can sense when there is somthing wrong with us. For instence there is a group of trainers seeing if dogs can really detect cancer. Experst like some docters, vets and others say and belive that dogs will not help in cancer detection anytime soon. I believe that dogs can and will. Most people take advantage of dogs and there smartness. Dogs are very smart and people don't see that. When samples were taken from people with cancer, without any disease, and other diseases. Then they took ordinary pet dogs, that had no training, and put the samples out. The dogs were correct 85% of the time. There have even been times when there was a sample sent in saying it was not cancer but the dog said that it was, no mater how many times they rechecked it, so they sent it back to the hospital. Then the doctors rechecked themselves and the person had canncer! If the dog had not told the trainers that it was cancer then that person would not be alive today. As you can see us as humans did not believe that dogs were this smart but they are so dont take advantige of it. Who nows your dog could save your life some day.