>>106107547
I can confirm this is true because having been "the gaijin" for a year, it's all on you to act. they can't handle non-normals.
That said, are you confident you could handle it when your boss comes in and introduces John Heart, your new co-worker, and opens with "btw he's mentally unstable, please be considerate!" without further detail?
You'd probably also avoid being forward in order to avoid running into landmines, ESPECIALLY if your job is customer-facing.