“ 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 PCs have travelled long and far. As nightfall approaches a mighty storm is unleashed. Luckily there is a lush wood nearby the path.
A good shelter for the rage of the unnamed weather gods it seams at first. As the PCs enter under the roof of this dense wood, they are welcomed by only a few drops wich is allowed trough the thick forest crown. A fire is offcourse required to warm the weary bones of the travellers. As one of the party is set to the task of collecting firewood the others settle down at a suitable location. But alas, they did not know the perils of this forest. But it seems clear to the rest of the party that something ill is at work as the woodcutters scream echo from afar.”
                        
                     
                                    
                        “ There is a land where every person wears spectacles.  Those without eyeglasses are considered to be the lowest stratum of society, so adventurers without glasses are treated like outcastes.  It certainly would explain those heroes wearing sunglasses for no apparent reason...”