You are a superhero.
A feud between supervillains has resulted in your arch-nemesis being suspended in a cage that is slowly being lowered into a vat of molten lava. On the opposite side of town, a bus full of schoolchildren is slowly rolling down a hill with a deadly cliffside at the bottom. You are midway between the two situations, and only have time to save one of them.
Obviously you're going to save the kids. But, being the hero you are, you do the noble thing and call the supervillain to inform him of the situation and let him know he's going to die. The supervillain then tells you that you should save him, and he will use his smart-phone to hack into the bus's onboard computer system and save the children. Nobody has to die.
Now, several things are more than a little bit suspicious about this proposal. Do busses even have onboard computers with wireless access and the capacity to take control of the vehicle? You don't think they do...and even if they do, could a smart-phone actually be used to perform such an outlandish hack in a matter of minutes? On the other hand, this supervillain is the mad genius type, and you've seen him pull off exactly this kind of shit before. On the other other hand, this guy is also pure evil, and he would definitely lie about something like this to save his own skin. And even if he can save the children, he might let them die just for teh lulz. On the other other other hand, your superhero code says that if there is even a slim chance to save everybody, you have to go for it. On the other other other other hand, that same code has gotten a ton of other superheroes killed, and dead heroes can't save anybody.
Anyway, you have to choose, save the kids or try to save everybody? What do you do?