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Robbing Delivery Robots Is Now a Thing
(www.autoweek.com)
This is a most excellent place for technology news and articles.
They’re bidet controls. One would be for front wash, another for rear wash, and the third one for air dry. There may be temperature controls hidden somewhere nearby, or more likely the system recognizes the user and automatically uses those temperature settings, and the seashells are just gussied up push buttons.
This is the most plausible and simultaneously worst possible answer to that bit.