God dang this srrikes close to home. I have had plot twists i thought were badass and some guy would be like "man just imagine if blah de blah was ACTUALLY just stringing us along for an ambush by the blahs. But our awesome DM has a much better idea than that I'm sure. Right John?" *me crying on the inside* "Oh yeah, MUCH better
Oh this reminds me of certain types of players, if you take suggestions!
Such as the ones who are obsessed with the idea of having a pet dragon and won't be quiet about it haha, and once they get one they rub it in everyone's faces and such - or the players who are obsessed with having a pet in general. One time a guy wanted a pet wolf so he refused to attack a pack of wolves that were attacking us and they killed someone...
Our old tabletop group used to be so apt to speculate (loudly) about what we were going to fight, our GM once put together a dungeon crawl with no encounters. Every time we'd start to speculate about what we were going to fight behind the next door, he'd just pick the most devious idea mentioned and install it. We made it about half way through before we figured out what was going on. It was brutal.