Insanity
Where did the term "mad hatter" come from?
Hatters used to use mercury in hatmaking and in the process the hatters were poisoned. The behavior of these poisoned hatters led to their being called mad, hence the term mad hatters. Luckily, once this discovery was made, mercury stopped being used in the hat making process. Of course, by this time mercury was abound in the environment and even today many types of marine animals can not be eaten because they have high mercury levels. Just think of all the chemicals and biological agents used today and the only reason many are still used is because people have not gone crazy or dropped dead. Or have they!
Hatters used to use mercury in hatmaking and in the process the hatters were poisoned. The behavior of these poisoned hatters led to their being called mad, hence the term mad hatters. Luckily, once this discovery was made, mercury stopped being used in the hat making process. Of course, by this time mercury was abound in the environment and even today many types of marine animals can not be eaten because they have high mercury levels. Just think of all the chemicals and biological agents used today and the only reason many are still used is because people have not gone crazy or dropped dead. Or have they!