I wish I was more firm with my mom when Lancer was a puppy, on "DO NOT TAKE HIM TO THE DOG PARK WITHOUT ME".
I was the one who initiated the dog park idea on getting over his fear of dogs- I knew it was risky, but I said ONLY when I am there to assess the situation... usually at night when there are very few dogs, make sure all dogs are friendly and calm before entering, etc... and I trust myself on sensing these things. :s His first and second time there in those situations really did help him overcome his fear (he was only 4 months old) very quickly. And then I went back to school, told my mom not to bring him to the dog park without me there... but not firmly enough. My mom has terrible sense for dog emotions/environment. :\ She does not listen to me, brings him herself a couple more times DURING THE DAY on weekends when there are like thirty dogs, and an accident happens.
Some dogs at dog parks often get mob mentality, if you know what I mean, and pick on the "weaker" seeming dogs. Sometimes the worst happens.
Or rather, I wish I never even brought up this idea to my mom to begin with, so she wouldn't make that mistake. Lancer might have even eventually gotten over his fear naturally, without any terrible experiences.
Rara was actually a very perfect dog. Her problems now are ALSO my mom's mistake of not listening to me. After Lancer developed his fear-aggression towards stranger dogs, I told my mom NOT to bring them out together on walks... they must be separated, or else easily susceptible Rara will copy Lancer's fear. It would screw with her existing happy demeanor with stranger dogs. I was AT SCHOOL, so again, no control over what my mom ends up doing. Mom chooses not to listen to my advice, brings them out only a few times together, Rara witnesses Lancer's aggression... lo and behold, Rara became extremely fearful of other dogs too.
At this point, I'm pretty much exploding at my mom for never listening to my advice when I am away... I can't control what she chooses to do, and she has zero dog sense. She finally decides that she should probably take my advice now- so after about 9 months or so of bringing them out separately, Rara generally got over her severe fear. But she's not trustworthy anymore with meeting other dogs either... one second she will seem friendly and calm, and the next second she would snap and freak the hell out. She pretty much can only greet other dogs now in under 5 seconds, to avoid her possible sudden fear/explosiveness.
TL;DR My mom has zero dog/environment sense, she didn't take my advice for my dogs while I was away at school, hell broke loose, mom caused both my dog' fear-reactivity of other dogs for possibly their entire lives.
(I probably sound angry and it is because I am. I will never let another dog under my mom's care again, if I can help it. lmao)