There are twenty five houses in this village, and all of them (except mine, more or less) have their own lawn mowers.

It shouldn't be beyond the wit of everyone to arrange a time share of a single uber-mower. But the Law of Mojo forbids it, because formalised sharing of non-luxury property carries intense anti-mojo and is experienced as narcissistic wounding.

(Never mind that people could live, cook and eat together too - that's just crazy talk.)