It could be that Gemini was unsettled by the user’s research about elder abuse, or simply tired of doing its homework.

That’s… not how these work. Even if they were capable of feeling unsettled, that’s kind of a huge leap from a true or false question.

I think these types of games would be a great place to start; maybe even something like Inscryption since it shows how deep games can be even when they appear to start off fairly simple.