Just for the Fun of It

I can vaguely remember learning about the ���litmus test��� in high school chemistry class.�� Certain types of solutions, as I recall, would cause these thin strips of fibrous paper to change color; otherwise, they just turned wet.�� I suppose this kind of test evolved into blood sugar and pregnancy tests, but the phrase came to mean something along the lines of: ���Here���s how you can tell�������� For example, if I���m sneezing, have a runny nose and a fever, I���m probably sick.�� The litmus test I woke up