Old programmer

As a programmer, I have spent a career producing hi-spec and functional software designed to do some important stuff. However...it never ceased to amaze me how the wee "non-functional" things are what users love and rave about. 

This is the Mini's version of a non-functional requirement that tickles me ever single time I close the door in the dark :)

Weather: cloudy; 8 degrees c; light jacket weather; mild.