A lithium e-cigarette battery in Johnson's pocket had reportedly come into contact with with coins, causing it to overheat and explode, which can happen when the circuitry inside the battery is damaged.
The change to the lighter coin caused widespread inflation, so in 175 BC Emperor Wen of Han (r. 180 157 BC) lifted the ban on private minting; private mints were required to mint coins weighing exactly 2.6 g.
In England, being greeted by anything above a two-pound coin causes most bus drivers to either scream, cry or spontaneously combust.
Level 10 (Very extremely low priority) The user has somehow come into the possession of a cursed Aztec coin that caused the user to switch spirits with the computer, but it is not preventing the user from continuing to work.
In December, researchers announced that euro coins release nickel when soaked for hours in artificial human sweat, suggesting that the coins could cause itchy rashes in sensitive people or workers who handle money frequently.
In the letter, scientists warn the new coins could cause skins problems to people with nickel allergies.
Cashiers and bank clerks are most likely to be affected, although there is no consistent evidence that nickel-plated coins actually cause nickel allergy.
The zinc content of some coins can cause zinc toxicity, which is commonly fatal in dogs, where it causes a severe hemolytic anemia, and also liver or kidney damage; vomiting and diarrhea are possible symptoms.
One of the concerns of the Irish discussed in the first letter was over what is now known as Gresham's law: debased coins would cause silver and gold coinage to be hoarded or removed from the country, which would further debase the currency.
