When one person has to make a decision between two people in their life, and they are entered into a scenario which involves the given person holding onto those two important people...over the edge of a cliff.
The decision has to made hastily, either dropping one person and continue to survive with the other, or hang onto both of them, which eventually leads to everyones death.
Using the Cliff Concept in standard dialogue:
Jacob: "If you had both me and your philosophy teacher hanging off a cliff, and you could only save one person, who would it be?"
Sage: "Well, thats quite controversial and really hard to come to a decision...I'd have to save you though, Jacob, just because you're way hotter."