Scotsman 18.1.06 Farewell to foie gras, hello oysters, truffles - FOOD FOR THOUGHT - JO EWART MacKENZIE - JANUARY is not traditionally the time to be feasting on gourmet foods such as foie gras, but in the wake of a particularly brisk season, in which kilos of the costly stuff have been served up in upmarket restaurants around the globe, the animal rights activists are out in force???.