If the player wants to be lame and make up lame excuses for their meta-gaming, that's up to them. I don't really want to play with them, though, because I think that's a player who doesn't want to...well, play. That's a player who wants to win, like they're in a game of monopoly or something.
Ok, hypothetical: if the DM had not asked for a saving throw after the first character ate the fruit, bur the other characters had still decided not to partake, would you still call that a lame excuse? If not, it would seem that the action itself is not what makes the player guilty of metagaming in your eyes, but the fact that they know something. And once they know that thing, they seem to be forbidden from taking a certain action, seemingly because
you think they wouldn’t have taken it if they lacked that information. But you can’t know that for certain.
I want to be clear - if it is consistent with their character that they pass up the fruit because they are super rude or allergic or whatever, then that's a different story.
But who gets to decide what is or isn’t consistent with their character(s)? And if it isn’t the player(s) themselves, why not?
But I think we all understand that's not what the OP is describing. The OP is describing a situation where story logic is that the characters would eat the fruit, but the players are saying "Nah, I don't want to have them do that because now I, the player, know there's a saving throw involved, even though everything looks fine to my character."
Who says everything looks fine to their character? The example says no such thing.
Edit: And look, I understand that we are playing a game with rules. But for me the fun of the game is in suspending disbelief and treating it like the story is real, like your characters are real, and not like we are sitting around playing a complicated game of Battleships or whatever.
I don’t understand why making a decision that may be motivated by out of character information necessarily means you aren’t suspending disbelief and treating it like the story is real and the characters are real. If there’s a plausible motivation the character might have for taking that action, it seems to me that taking such an action wouldn’t break that suspension of disbelief.
Edit 2: And yes, I can see everyone arguing, "well, maybe it made sense for the characters to pass on the fruit," etc. Yes, I've already conceded then in that case, fine. But I think it is patently obvious that was not what the OP was describing or asking. So I think folks are just trying to dodge the dilemma.
I disagree, considering the person who
wrote the opening post is arguing on the side of “it could have made sense for the characters to pass on the fruit.” I think the actual point of contention is, is there
ever a situation in which it couldn't have made sense? I, and I believe
@iserith (who wrote the opening post) would both contend that there is not.
But just to clarify where we stand on the argument: let's assume that the only logical course of action was to eat the fruit, and the player explicitly says, "I know that my character loves fruit and hates being rude and it only makes sense for them to eat the fruit, but now that I, the player, see that something bad might happen because I saw you make my buddy make a saving throw here at the gaming table, I refuse to have my character do that."
I’m not sure I can make such an assumption, as I don’t believe a scenario where eating the fruit is the only logical course of action is actually possible.