edit: Actually saving the atomic numbers of all the periodic table of elements to my calculator as variables lets you do chemistry math with "He9" resolving to

edit: Actually saving the atomic numbers of all the periodic table of elements to my calculator as variables lets you do chemistry math with "He9" resolving to "18" might be better than the below. I had - ahem - acquired some user logins for my local ISP. Not knowing any of their dialup numbers on account of not being a customer, I just called them and asked for it. They gave it to me no problem. The weakest chink in the armor of any company will always be its humans. The unpatchable hole. Runner up: I was noticing that if it was really quiet I could hear noises from my speakers even when nothing was playing from my computer. I eventually listened long and closely enough to hear that it was a local radio station. In a flash of brilliance that came from where I don't know, I looked up their website and emailed their engineer. I got the most detailed and thorough response I think I've ever received back from a cold email. A protip in that vein: If you want to read a scientific paper but can't afford the journal fee online, email the author(s). Turns out they love when people are interested in their work, have the right to share it, and will send you a copy 100% of the time I've tried this. Sample size: 1