Zelda is going on 11 months now and loves absolutely everybody she meets.....except my dad( who I live with). She disliked him from day one when she met him at 8 weeks old. When I'm around, she stays around me and barks at him with hackles up. She never barks!!! And apparently when I'm not around, he said she has lunged at him.
I tried making him part of the pack with training, but she still has not fully accepted him and now when I'm away I have to keep her in my bedroom. She gets a 2 mile walk every day and we always play fetch and tag in the yard, but I occasionally have to stay out overnight for work.
Is she okay with being in the bedroom alone overnight? I always leave her with more than enough food and water, stuffed kong toys, and digestible chews. And what could I do about the aggression? I'm working on moving out. I really don't know why I would do if I had to part ways with my baby.

If she isn't destroying anything or making noise that keeps everyone up then leaving her in the room shouldn't be an issue. At 11 months old she should be able to hold her bladder a long time, more than the 8 hours most people work.

As for your dad, what does he do with her? Does he feed her, talk to her, walk her? Does he look at her? Usually a reaction like that suggests that he is nervous of her and she is returning the feeling, or there is something about him (beard, limp, etc.) that's different than she is used to with other people. The best way to get a dog past it is to have him interact with her in a positive setting. Feeding her high value treats. Walking her some place interesting. She needs positive experiences with him.

All she really does is rip up her chews and toys as usual, she also folds her pee pads haha. My dad isn't in the best of health so he can't really take her on walks, but he does make her boiled eggs and often, to my dismay, gives her other treats like fish and crackers. Unlike when I give her treats, he doesn't ask for a "lay down" or "sit".

TwisterII wrote:

If she isn't destroying anything or making noise that keeps everyone up then leaving her in the room shouldn't be an issue. At 11 months old she should be able to hold her bladder a long time, more than the 8 hours most people work.

As for your dad, what does he do with her? Does he feed her, talk to her, walk her? Does he look at her? Usually a reaction like that suggests that he is nervous of her and she is returning the feeling, or there is something about him (beard, limp, etc.) that's different than she is used to with other people. The best way to get a dog past it is to have him interact with her in a positive setting. Feeding her high value treats. Walking her some place interesting. She needs positive experiences with him.

How does she act when she is taking food from him? Run up and grab it then move away, or wags her tail eagerly and waits close to him for him to give it to her?

Training is a good bonding exercise. It instills boundaries, manners, and teaches respect between a dog and the trainer. Just handing her food if she has a problem or fear of that person doesn't help her to respect him and on some level she might even think that he owes her treats because he scares her. I would encourage him to make her work for her food, you can also search on the site here about NILF (nothing in life for free) training. It is a great method that gets a lot out of a dog in a fun manor. If she is having an episode of not liking him one day you can also try running her through tricks when it starts to get her mind off whatever is triggering it and helping her to calm down. Even treating her to sit quietly beside him (without him touching her)

Also, some dogs are very sensitive to health issues. She maybe sensing that he isn't in good health and it triggers to her that he is different. You just have to enforce that that is okay and work to make him part of her pack. It's not all on you though, he has to want it also and do his part. She will come around. At 11 months they go through funny phases where some random stuff will upset them, like one day she might hate the microwave running, but it passes.