At 6pm today, a person or persons unknown unpacked the contents of Oxfam's three wheelie bins of unwanted donations and displayed them on a table, inviting all comers to take freely from the goods. Passers-by were regaled with news of the bountiful free shopping to be done and the central Cowley Road pavement scene buzzed with happy speculators for an hour. Analysts predict the incident may well re-occur.