If your dog is nipping at this age you have failed in puppy training, but lets see how 2 correct this:personally i would correct with a firm NO smack with a finger then ignore, repeat untill loving nuzzle then HIGH PRAISE. re : young children adjust previous prob when that is sorted constant monitor of young kids with dogs as they probably need more control than your dog .No one and i mean NOONE should leave a young child with any breed of dog FULLSTOP