I really advice you to teach your kids to respect the dog, too. Way too many dogs get punished because the kids hurt them, and they bit in return, when most of the time it's just because the parents never told the kids to stop. They are young, but they can learn. I'm sure when they put their hands on the hot stove you don't let them do it, so you should be just as firm when they are too rough with the dog. It could save their, and the dog's, life.