These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic - Nobody is sure whether Benny Slightman counts as a twin or a singleton, as his twin died young. How could an agrarian society with little access to medicine, in which infant mortality is expected to be high, not have learned that from previous raids?