I would like some advice please on my dog and whether anyone has past experience with aggressive dogs and behavioral euthanasia.
A short back story, i have 2 dogs (male, both neutered, mini schnauzers). The older one age 7, is extremely sweet, gentle and kind. My younger dog, age 5 has since a puppy been extremely reactive on walks and had real resource guarding issues. On a walk if he sees another dog he will bark, lunge, snap etc and in the house, he resource guards around my other dog in terms of high quality treats and his space.
Previously i have been able to manage all of this but recently in the last 6 months - a year or so he has become so much more aggressive. I have been bit by him many times, last month was particularly bad and he latched onto my hand and caused some bite marks and a lot of swelling on my hand. However my main issue is that he is become more aggressive towards my other dog, the snapping before i could manage because it wasnt like an actual attack it was more just showing dominance but i didnt worry about him hurting, however now, he will really growl and go to bite my other dog and in that moment he is out of control, depsite being 3kg smaller. Just this morning he bit me again and i now have a blood blister and 2 small cuts, this was just from sitting with both dogs and giving both of them a stroke and he just went for my other dog, so from protecting my other dog i then get the aggression directed onto me.
I have tried many types of training and techniques, just last year we spent thousands on residential training and it didnt work. I try to remove all his triggers, we are very cautious now about how we do anything in the house incase it causes him to snap but sometimes you just cant predict what will happen like this morning. I am just worried about my other dog more than anything.
Does any one have any advice or previous experience? Thank you