I have a Jack Russell puppy who is about 5 months old. We started dog training and have been to about 4 sessions, he has learnt to sit, down, stay and a few other things.
BUT when he is there he tuens quite aggressive - the trainer called it aggressive displacement. He has not turned aggressive at home and i have 3 young children so am very careful.
Can anyone give me some more advice on this? He is friendly to other people and apart from the normal puppy biting is ok.
Training is a bit slow - how often should i do "training" each day ? How long does it take for a puppy to be fully trained?