I have an opiate opoponax problem. It started with an unexpected capitulation to the Red Hot charms of Eau Lente, segued into a sudden and slavish devotion to Jicky, and culminated in a shameful episode a few weeks ago, when I found myself outside a train station at 7.30 a.m. palming a wad of cash to a shady eBay guy for a brown paper bag containing two smeary half-bottles of Carthusia’s Ligea La Sirena.