Stupidity is the step mother.
That reminds me of another incident. A tech company high on robotics, innovation and gadgetry spent a rich mans limb and a half to devise a Mail and Document Courier (MDC). The MDC had an integrated local positioning system which it used to deliver the documents to the person concerned. The MDC's track/path was determined by spraying a transparent paint on the carpeted floor. The spray took a day to dry and evaporated with time. So, every quarter, the employees were subjected to "Do Not Step On The Invisible Line" warning messages and sign boards.





