I am very surprised of a black lab biting anyone, since I own a black lab.
I've have 2 dogs right now and black lab is the furthiest animal from being dominate, hell I think a cat would be more dominate than my dog, all the labs I've been around are usually very friendly and laid back.
My guess is your dog has some kind of sickness, I would take him to a vet and have him checked out.
But if it does comes down to your kids or your dog, your dog would have to go.
Hope everything works out for u.
I've have 2 dogs right now and black lab is the furthiest animal from being dominate, hell I think a cat would be more dominate than my dog, all the labs I've been around are usually very friendly and laid back.
My guess is your dog has some kind of sickness, I would take him to a vet and have him checked out.
But if it does comes down to your kids or your dog, your dog would have to go.
Hope everything works out for u.