if you grow mushrooms over a toxic waste site, chemical spill, or other polluted growing medium, they will suck up the toxins into their fruiting bodies with such effectiveness that they are being studied for their ability to clean up tainted industrial sites. it’s called mycoremediation.
if you do this with edible mushrooms, they are no longer technically edible, but on the other hand they make a great way to poison your enemies. this is called murder and it’s usually frowned upon, but they won’t see it coming and you get bragging rights afterwards about your ability to kill people with a pizza topping.
Sorry this was not precisely most people’s idea of “nice.” Let me add that you are a glow of comforting absurdity in an ever-more-fucked-up world.
