“ The PC's end up in a strange world where the very rocks are made of gold and jewels.As such gold and jewels is worth very little, but the iron in their swords and belt buckles is suddenly worth a LOT.”
“ You type the command into the console. 'Insufficient Guineapigs' the computer responds. Baffled, you retype the command. 'Insufficient Guineapigs' the computer replies again. You decide you should start smaller, with a simpler command. 'Insufficient Guineapigs'
What does cycling the spaceship's airlock have to do with a now-extinct Peruvian rodent?”
“ The Californian Sea Otter, as a species, eats about 30 different types of food found throughout its range. Each individual otter, however, will only eat 3 or 4 of these foods - those it was fed by its mother as a child. It will not eat the others even if failure to do so means it would starve. Maybe other, possibly larger and more dangerous creatures and monsters, have similar habits.”