Jazzo,

I prefer events where you can't be certain if you are making the right (or safe) choice. For instance, to take your example:
(Villager) sees a strange animal in the trees
  • Kill the animal and use it for food
    1. Animal attacks villager (Status becomes weakened)
    2. Villager kills animal - 500 food gained
  • Ignore it
    1. No effect
    2. Animal attacks villager anyway(Status becomes weakened)

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To err is human; to arr is pirate.