Mercury is poisonous, and you could get intoxicated by touching
it or breathing in its vapours. Toxic effects include damage to the
brain, kidney, and lungs. Mercury poisoning can result in several
diseases, including Acrodynia (pink disease), Hunter-Russell
Syndrome, and Minamata disease. It is also very bad for the
environment, and for these reasons they have ceased using it to
make many products such as thermometers and fluorescent lamps in
case of a spill/leak or accident.