While most of life’s pleasures can be shared, reading is lonely. It’s more than possible for six friends to enjoy an exquisite meal, a bottle of wine and then settle down for a four- or five-hour orgy. Food, drink, sex: these things are better shared. But if, as dawn approached, someone cracked open Chaucer’s ‘Parliament of Fowls’ and intimated that it was time to really get down to brass tacks, it could only spoil the mood.