“ You receive a vision of a rooftop 'somewhere close by', where a rare moss grows; in the vision, you know the moss is suitable for greatly enhancing the effects of certain types of potions. Now go and find that rooftop. Don't fall off. (Of course, rooftop runners *will* be taken for miscreants by the local City Watch....)”
“ The mage who invented teleportation knew nothing about the ten-dimensional cosmos, so was perplexed that the subjects sent through the portal arrived horribly scrambled, having been randomly rotated through several of the hidden six dimensions.”