Rule 8.3 - Thou shalt not loot the corpses of other players
When you loot someone elses corpse, you are in effect stealing their gold and possibly their equipment (depending on the character.) This is illegal, and you MUST return anything taken from a corpse IMMEDIATELY upon request. You MUST also actively attempt to return anything accidentally taken from a corpse, including gold. It is no defense to say "he never asked for it back".