When I saw the trailer to Shutter Island, a film about a detective trying to solve a murder at a mysterious and secluded mental institution, I immediately guessed that the twist was going to be that the detective was actually a patient the whole time. This made me decide that I didn’t need to watch it and I never looked up a plot summary so I’ve no idea if I’m right.
For me its: “There are two ways I could go about this and there’s no way I could possibly be expected to choose which one”. I guess thats just a variant of top left though.