But it was unplanned, unless you buy the theory that Frodo had already ordered Gollumn to jump into Mt Doom if he betrays Frodo, and that this order is what cau

But it was unplanned, unless you buy the theory that Frodo had already ordered Gollumn to jump into Mt Doom if he betrays Frodo, and that this order is what caused Golummn to dance backwards towards the edge rather than dance in place.