Recently I did a "25 Random things about Me" list and one of the items I listed was that it bothers me when folks use improper grammar or misspell words.
However, today I realized that I am also rubbed the wrong way when people use the wrong word. Granted, I am most nearly a hormone hostage, but I find that I must put this in writing:
Pneumonia (pronounced NEW-monia) is an illness of the lungs.
Ammonia (pronounced AH-monia) is NOT an illness of the lungs. It is a really smelly liquid that does a bang up job getting grease out of clothes. Mixing ammonia and bleach is a no-no. (Danger, Will Robinson!)