“ A village where everyone goes blind sometime during puberty. What could be causing this? Perhaps something in their diet. Or some malignant gene. How would an entire village where only young childen can see function?”
“ You wake in a pub and see that it's full of were creatures, and they're all staring at you with a scared look on their faces. As you continue on into the pub you look at your arm. You notice that your arm is covered in thick brown hair. As you continue on into the pub you look in a mirror, and staring back at you is a 7 foot werebear. As you continue into the pub people start to shy away form you. Once you go the bar you ask the weretigress that's the bartender and begin to ask her why everyone is shying away from you, and she begins ro tell you why.”
“ A small, primitive village has yet to discover fire, which is a good thing because there are highly flammable (but not otherwise dangerous) gasses in the air. The heroes, blissful in their ignorance, don't know that and think it a wonderful idea to show the locals open flame.”