Sundays are for recovering from the friend-of-a-spouse’s wedding you attended on Saturday while suffering from an acute case of Old Person’s Back. Unfortunately, the time for recovery has in fact passed, as you have already moved to the more immediately satisfying phase of assigning blame. Possible suspects: your swivel chair, your mattress, the PC monitor you had to laboriously re-box for transit, your sofa, and that most connviving, spine-bending bastard of all, light walking. Spoiled for choice, you sit down…