My Pitch is a wolf hybrid. I found him on the street as a puppy. He was so wild and ferrel for so long that most of my friends said he was actually a non domesticateable wild animal. It went on long enough that I almost began thinking tbey were right. Had it not been for the vet explaining what he was, I may have given him up.
I was advised to discipline him as a pack would, rather than a human child. My hands and fingers became mouth and fangs, which could bring pleasure or pain depending upon the behavior I wanted to discourage or promote. His constant nipping and biting were met with forceful pinching on his jowl, just as an older pack member would do, clamping down hard until the submissive yipe was heard. We also shared a rope and played tug o war constantly to relieve his teething. Praise and play always followed hard discipline. His biting stopped within days.
Jumping was always met with a defensive farward moving knee, and followed up with @SmashTheState‘s advice, and then comforting reconciliation. The jumping stopped within days.
Feeding time was spent with my fingers buried in his bowl, and he learned to gently navigate food competitions or suffer the conscequences… Just like a pack.
Pitch is currently the happiest most loveable non agressive animal that I’ve ever seen.