In reply to Ann S:
A mate of mine was seconding a climb at Swanage on a very windy day. About 5m before the final overhang he pulled on a hold and a large block detached itself leaving him dangling in space.
He calculated that if the leader lowered him off there should be just about enough rope for him to reach the ground, so he shouted to the leader to lower him off.
Meanwhile the leader had felt the increased pull on the rope but unable to hear the second, and assuming he would start climbing again soon. Held on hard.
This situation continued for several minutes, and eventually the second decided that he had best start prusiking up. After about 15/20 mins of strenuous prusiking he reached the overhang and had just about made contact with the rock again, when the Leader, fed up with holding him decided that he must want lowering off.
So just as the second was searching for holds he found himself being lowered down again!
Still well above the ground the rope ran out and the second was then faced with an even longer prusik back up again!
He eventually emerged at the top and air was blue!
It was only in the pub afterwards that they both had a good laugh about it