My pup sleeps like a rock in her crate, and as soon as its time to play she bites down hard like I’m a chew toy. She actually slit my finger when i went to put her leash on. Shes just over 8 weeks. I have tried the saying ouch nonsense but she doesn’t react at all to it and continues to bite down harder. Starting to give up. I have had her for a week and a couple of days. Can’t wait until she’s teething....