A fart so deadly and repulsive it will clear out a room, and even after evacuation and multiple doses of air freshner the smells only gets worse. When a sheen fart is emitted- best case is to leave the building and not come with in 500 ft for a day or two
Sheen farts tend to be silent- but can also be loud and wet sounding
OMG that sheen fart almost killed me- I needed 5 oxygen treatments after I woke up from my coma