Cliffhanger at a collapsed temple

[gamerguy]

So, I was playing with some friends last night and one brought up a good point.

He was adventuring at a temple and fell into quicksand, he failed the test and had to flip to the cliffhanger, he rolled for the temple collapse and, well, it collapsed; but, he managed to escape the temple.

So asked if he had to still complete the cliffhanger, if he managed to escape the collapsed temple then how on earth could he still be stuck in quicksand (or be driving off cliff or fighting crimson hand goons or whatever) we read through the temple section of the rulebook and didn't find anything about discarding the cliffhanger, so we made it a house rule that if the temple collapses discard your cliffhanger, since you'd either escape or be OK'd anyhow.