[cjhveal]

Reminds me of the 2005 conversational simulation game, Facade[0], in which any mention of the word "melon" would be met with being immediately kicked out of your host's dinner party.

[0]: https://www.playablstudios.com/facade

[inopinatus]

c.f also the “Scunthorpe problem”. https://en.wikipedia.org/wiki/Scunthorpe_problem