Pharmacists live in minutiae… Ask anyone who has ever filled the innards of a tiny gelatin capsule with a drug, and they will know that twenty grains equals one scruple. Three scruples equal one dram apothecaries. Eight drams apothecaries equal one ounce apothecaries, which equals four hundred eighty grains, or twenty-four scruples.
[…] It was funny — a scruple, by itself, was a misgiving; make it plural and it suddenly was a set of principles, of ethics. […] You only had to survive one of your regrets, and it was enough to make you realize you’d been living your life all wrong.
‘Weights and Measures’ by Jodi Picoult, in Stories: All New Tales edited by Neil Gaiman and Al Sarrantonio, page 143