The old timer in Bakersfield told me my drip loops were "decorative" and I've never forgotten it
He didn't even say it mean, just pointed at the loop I ran under a house in 2019 and said water doesn't care how pretty your bend is if it's pointing the wrong way, so now I check the drip direction on every single drop before I zip tie anything.
Water doesn't care how pretty your bend is is honestly the most brutal thing a plumber can hear. Old timers really do hit you with one sentence that lives in your head rent free for the next ten years. Imagine getting roasted by a guy who just wanted to make sure your drip loop actually drips. The worst part is he's right, and now you're out here checking every single drop before the zip ties come out like it's a religion.