Need further proof that dogs are man's best friend? I saw this video yesterday, and tears came to my eyes. I was saddened to think that this boy wanted to harm himself, but the lump came in my throat when I saw his service dog go into action. The dog repeatedly tries to knock the boy's hand away as he hits himself, and demands attention. Finally the boy sinks to the floor and the dog crawls on his lap. Pass the tissue will you?