Yesterday morning you set out on a hiking trip. You brought camping supplies so that you could camp overnight and then hike out the next morning. The weather couldn't have been better yesterday, and the forecast for today was certain to be the same. Surprisingly, you wake up freezing. You unzip your tent:
You didn't properly prepare for severe weather. You don't have enough food to last you another night. You have to start making decisions now to get home safely.