Housed in a grenade, never a good sign, the little vial of Death Cap engineered chilli extract hits 13,000,000 units on the Scoville scale - making it the hottest substance on sale in the UK. That means, for all those uninitiated, that for every single drop of this hellish stuff it would take 13m drops of water to neutralise the heat. If that doesn't drive home the brutish nature of this unbelievably hot substance then maybe the fact it is six times stronger than the standard UK police pepper spray might. Keep in mind the world's hottest chilli is only a meagre 2,000,000 scoville units.