As a note, none of these are severe issues that I don't think I'll be able to solve on my own with time, but nonetheless there are a lot of knowledgeable people here and I figured I'd see if I could get some tips! Apologies ahead of time if I get a bit lengthy.
The first issue, and one I'm most concerned about, involves our border collie. Hana is a hyperactive but sensitive nearly-three-year-old border collie who we've had since she was a puppy. Her previous friend, who passed away in March, was a lab mix who was dog aggressive with all dogs except for her. They played like crazy and enjoyed each others' company, nonetheless, and Hana was raised with her. Hana seemed lonely after we put Tia down.
We adopted our two corgis about four months ago, I believe, and she is very intimidated by them even though the three mostly get along well. Hooch, our male corgi, growls a little when he's going after balls, and as a result Hana won't even go after a ball if Hooch is going after it, even though he would never hurt her. This results in fairly obnoxious behavior by Hana, where she'll bring us the ball, we'll throw it and Hooch will go after it and bring it back, and then Hana will bark incessantly because Hooch went after her toy and she's too afraid of him and his little tiny growl to go after it as well. The only method I've found is to throw one toy for Hooch to get, and then immediately throw one for Hana, but even then there's a problem because she doesn't bring it back (thinking Hooch will get it if she does), so she just stands by the ball and barks.
Honey, who is our female corgi, can be a little snippy with dogs bigger than her and is sensitive, too, so if Hana growls for any reason, Honey starts growling, too. This just escalates into both dogs growling at each other, even though neither of them are aggressive. As a result of Honey growling, Hana is now afraid of Honey and spends much of her time sitting stiffly (literally) on the couch or under a table if Honey is around, and watches her closely. She's obviously not truly terrified of the corgis because she runs with them outside, will hang out with them peacefully in the car, and overall gets along with them, but her stiff, intimidated behavior in the house saddens me because she was here first. It's just silly because she's clearly being overly intimidated by dogs who are harmless and half her size, but because they're feisty and sometimes growl she seems to feel challenged by them.
Any ideas how we can make her more comfortable with the corgis, so she can be herself and not do this whole stiff and growling thing? Like I said, she overall seems to get along with them, but acts peculiar some of the time.
The second one is Honey's sensitivity. She is wonderful most of the time, but has three particular quirks. The first is that, when she gets scared by a sudden noise/something falling down, she will take off running in whatever direction she can as fast as she can and ignore all calls to come back. She's only done this in a serious manner twice, going across streets and not returning for over a half-hour, but it still scares me that she does this. Our gate at our house falls down sometimes, and that caused the first run-off, and now--even though it's been at least a month or maybe even two--she is still scared of the area around the gate, and won't go near it with any amount of coaxing, treats, going slowly, or anything. I've been careful with when she's off the leash since she did the whole running off thing, but I still worry she'll do it again when I'm not on guard.
Her second quirk is that she is completely obsessed with my car, to the point where she has trouble leaving the car behind when I'm taking her outside and she spots the car. I think she's just paranoid I'm going to leave without her, but this has gotten to the point where a few times she's run down to the car (from across a one-acre property, mind you, and my car is parked near the street) at 3 or 4 AM when I was taking her out to go potty. Just dashes off to stand next to the passenger's side of the car, even though I'm not going anywhere nor have I given any indication of going anywhere. She's been better about it lately, but because of this and her spooking at things and taking off at random like she's done before, I always take her on a leash at night when I can't see her as well. Most of the time she has been wonderful at coming, especially after I've been rewarding her with cheese for coming when I tell her too, but it's like occasionally she is just taken over by either terror or stubbornness and takes off, ignoring me. I even have a specific command she understands that means we're going in the car ("Let's go in the car, Honey!"), but sometimes it's like she just...feels that she needs to go stand next to the car for no apparent reason.
The third is that, when we're at the dog park, she'll sometimes squeal and snap at dogs when they get close just because they're larger than she is. She never causes any harm at all because she just snaps at the air, but it's embarrassing to always have to explain to the dog owners that she's just snapping at the air and won't hurt their dog/their dog is not doing anything wrong or hurting her/she's actually friendly most of the time. It would be nice if she could just make peace with the fact that the bigger dogs exist, aren't scary, and she doesn't need to scare them off if they come over to say hello.
Anyone have any tips? :) Like I said, given some time I'll probably be able to work them out of these problems, but if someone has had similar experiences or has ideas on how to solve any of these issues, I'd appreciate it a lot!