Meet Doods, the Puli who shed his dreads
Doods had spent years in kennels where the owners and staff did nothing. He was in a lot of pain; we couldn't stroke him or touch him it hurt so much, he was incredibly aggressive with it. We rushed him straight over to The Dog House groomers after some pain relief given, and KD shaved his fur right back. The knots were so bad it took a long time. His skin underneath was badly infected, with massive welts and cysts all over. It was oozing.
As soon as we put him on the floor and took his muzzle off he was a different dog. Doods had learnt over the years that aggression kept people away and after 2 years he still carries that legacy when out of his comfort zone. Sometimes a dog is what he is, and no amount of training, etc will work. Doods is Doods and we are alright with that... we maintain his 'bubble' to keep him content.