[character happily points at a green cube] Green cubes are not dangerous for your health, they’re just green cubes
[the character is suddenly drowned under a mass of green cubes falling from above]
[a researcher looks smugly at the previous panel] Seems a million green cubes falling on top of you is not healthy… This we have conclusively proven that green cubes are bad for your health
And this is why we check the median lethal dose for our reagents before we work with them.