-Rain and weather/atmospheric effects. Simple stuff that's been in RPGs for decades...like when it rains, ground and characters gets wet.
It just reminded me of the bowl of goat's milk that old Winthrop used to put outside his door every evening for the dust demons. He said the dust demons could never resist goat's milk, and that they would always drink themselves into a stupor and then be too tired to enter his room..
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