Someone who was looking at this scenario told me another angle worth considering is what incentive the players other than me even have to eat the fruit.
I ate the fruit, knowing full well the situation was suspect, because I was trying to get some sweet, sweet Inspiration. So I portrayed my flaw accordingly.
After that save though, the rest of the players have zero incentive to be a "good little RPer" and expose themselves to risk. Instead, for eating the fruit, they get the shaft. Maybe they get to walk away with some level of satisfaction that they were "true to their character," but if death results, that's probably not all that great a payoff.
What does everyone make of that? What incentives do you see that would encourage the players to "not metagame" in this situation?