I was just reminded about this item, which I blogged about in 2002, when this blog was but a month old, so I thought I’d repost it. It’s from the “Maxims of Jurisprudence” subdivision (they’ve been codified in California), Civil Code sec. 3546, and it is of course a presumption and not a categorical rule:
Things happen according to the ordinary course of nature and the ordinary habits of life.
Deep, man.