Well my ring monopoly has finally toppled after a near 3 week uninterrupted streak of pure profit and now I need to move the ample stores of electrum ore I have stockpiled. Only problem is....

"You cannot summon any more retainers in this area."

How are people ever supposed to get their retainer in a full ward if they stay there indefinably? Just wait and pray that someone randomly decides to move a retainer at some point and constantly keep clicking the summon command?