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Shower thoughts are wasting water.
(aussie.zone)
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. The best ones are thoughts that many people can relate to and they find something funny or interesting in regular stuff.
There are the centuries old rock structures that extract moisture from the air via condensation though. Maybe they have some of those?
Modern by the universe timescale standards.