A review by jonmhansen
Trading in Danger by Elizabeth Moon

4.0

"Good. And the most important local taboo, on page eighteen, is underlined in green. Never, under any circumstances, sneeze without using a sprayer afterwards."
Ky had had no inclination to sneeze, but now her nose tickled. "But doesn't that spread infection?"
"It's symbolic Don't ask me, I think it's stupid, but you'd better buy a sprayer. The cheap ones are actually considered in better taste."