Link is almost 6 months old and still biting not hard but he will put your arm in his mouth and nipping at the kids feet. He does put his teeth on my husband and I but he really does it to the kids. My son is 11 and my daughter is 9. My son it is just his feet but my daughter he will go after anything. I am at my wit's end. We have been to puppy school and are starting Basic Obedience, Tuesday June 10. It seems like we have tried everything and nothing works. The only thing that sometimes works is a pop can with pennies in it but how long will the kids need to carry this before he gets it. He tried yelling " ouch" but that only gets him more fired up. We tried time-out but he just comes back out and bites or nips again. We tried distraction with a toy but he is stubborn and once he has got you, especially the kids feet he won't let go. Any suggestions would be greatly appreciated. Thanks.