Percocet used for pain relief is a narcotic medication and prescriptions can prevent people from getting high on Percocet without medical reason.In fact, the Percocet high feeling can get you into lots of problems.
I think the formula of the perfume itself decides how fast it will spoil. My perfumes from Britney Spears Curious and Salvatore Ferragamo went bad within a year and a half. The Britney Spears one developed some precipitation and started smelling like alcohol, while the Salvatore Ferragamo just smelled plain weird.
Good or bad odor, in reference to repute, estimation, is from 1835. Odor of sanctity (1756) is from French odeur de saintetÃ© (17c.) sweet or balsamic scent said to be exhaled by the bodies of eminent saints at death or upon disinterment.