Many many MANY years ago, when Alex was just a puppy, I "babysat" a little dachsie for a friend of a friend. What was supposed to be 2 weeks turned into 9 months (long story...). Little Chelsey was pure evil about resource guarding. (I think it may be why Alex becamse so dog aggressive ). I was young and stupid and had no idea how to deal with it. I've been lucky...James and Patti both had some issues, but not to that extent. we eventually came to an understading but I can't say it was through any training of mine (I suck so bad as a trainer!!). Tons of and for both of you! Keep us posted, ok? (This site is for trainers, but I've found a ton of good stuff on it in their resource section and blog...might be worth a look. https://canineprinciples.com/ )