Not surprisingly, despite all their stupidity and mischief, we value our dogs as our best friends. Dogs make us laugh when they are unpredictable and stupid. They entertain us with their playful kind and creative problem-solving skills. But I think that one of the main reasons why dogs make us laugh is their behavior and facial expression. Although they do not share most of our human emotions, sometimes they seem to behave like little children. Maybe that's why we even find it with a sense of humor when they are a little naughty.