hmm.. when Roger was little.. well.. more little.. he growled when my kid got too rough or hold him for too long.. and I simply but strongly said NO! sometimes even clapped my hands.. and he´d just look at me with sad eyes and tolerate being "hostage" longer...

he doesn´t do it anymore but he gets the no part still.. and he knows no means he´s doing something wrong and stops..

maybe as Willy is older he had his way too much.. and he needs to start from zero.. it´s not good if he growls to anyone.. but even less to you dad.. what if he reaaaaally needs to get up and can´t wait for you to come get him off.. Willy needs to know that he HAS to do what told even if doesn´t likes it/feels like doing it..

right now I think with this he thinks he´s alpha.. as he chooses to do or not what you ask.. he´d do what HE likes/wants.. so he´s choosing that too.. he needs to realize he´s not.. and maybe the focusing part is good...

maybe also bribing him off.. or just maybe "puppy" classes all over...

old dogs DO learn new tricks