Yeah that "looks about right" thing @eric_thompton hits hard. I read about a bridge where the bolts were just a bit too tight from someone eyeballing it, and the whole thing had stress cracks in a few years. Makes you realize how many small choices add up. We trust that the person before us did the math, but sometimes they just made a good guess. Your wire bundle story is a perfect example of that tiny detail no one checks until it fails.

Oh man, that's so real. I had the same shoulder thing from letting my wrists bend back too much during push-ups. A trainer told me to keep them straight, like I was punching the floor, and the ache just stopped. It's crazy how one tiny change can fix everything. I mean, you don't even realize you're doing it wrong until someone points it out.

Man, the "warped rotor from messing with it too much" part hits hard. I've been there, turning a small noise into a huge repair. That squeal is so annoying you just want to make it stop. The one simple thing is almost always the brake pad shims or clips. They get bent or lose their grease. A five dollar tube of brake grease on the back of the pads and the contact points quiets it right down. It's the one step all those online guides seem to skip over.