So, I thought I'd give a chemist's perspective on four of the many chemicals you just ate. They range from "Yo- Steve, toss me a bottle of acetone," to "Uh-oh. Chemist X is using chemical Y. Run:" Where X = the incompetent imbecile who is most likely to blow up the building, and Y = some nasty-ass stuff. There are far more X's out there than you'd think. Even more Y's.
Example: "Pyridine- Found in coffee. Pretty decent poison if you breathe too much, but this is unlikely to happen because it smells horrible."