Lisa and Marlon Grennan from the USA turned their pitbull called Hulk into a nannie for their younger son Jackson. The 72-pound dog often takes care of the child, however, they are never left completely alone, though the parents are sure that the dog will do no harm to the child. The older brother of Jackson grew up under Hulk's supervision as well.
The reason for such trust is the special training of the dog. Hulk was trained to be a police dog by Marlon's firm.
And would you live your child to this kind of nannie?