upon pondering some of the various conditions which might be judged as normal
During a few days of every year,
the grounds of certain rural agricultural lands
are fertilized with pig manure which, in turn,
fills the air with an ungodly stench
but to which swarms of flies are drawn.
The shit is cheap because
there's no shortage of demand for pork
and the pigs are cheap because they can subsist
on damn near anything organic,
including their own shit (now there's an example of the circle of life)
to (from what I hear) human beings.
But, this is all falls within the bounds of normality
and, really, people easily become acclimated to such conditions,
losing all ability to smell the shit.