And in the thoughtfulness-driven economy of high-end hotels, that might be the most considerate act of all.

CNN: Confessions of a hotel mystery shopper

Homebase says it works "very closely with suppliers and in-store colleagues to ensure that customers are informed about how to reduce light pollution and considerate lighting when they purchase outdoor lighting".

BBC: Light pollution: Is there a solution?

In society, being responsible for your family means you will have to be considerate about safety, about the environment in which that family lives, and indeed about family economics - including motoring costs, Mr Samuelsson says.

BBC: Volvo eyes 'responsible' car buyers