The worst is when people don't know how the system works, and then won't listen to answers

Like I was at a job and product was going on about "our system has no concept of project owner. We have all these projects but there's nothing unifying them under a single owner. We need to build this!"

I was like "... what? That's just not true. There's a "company" object that does that. It's got a foreign key with project in the database. I guess it's a weird name but it's there"

It took several back and forths over multiple meetings. They eventually got on the same page and I saved us doing a whole useless project, but they did insist I rename it to "account" in the database and code. I would've rather left it because that could've been dicey, but alas. (The rename did go out fine, but I had to go looking for every reference.)