Or there&#x27;s legacy code slapped together years ago that&#x27;s gone through a whole bunch of &quot;my personal methodology&quot; contractors, each of which has added another layer of nonsense and NIH madness, until you&#x27;re left with a huge and brutally complex system that almost no-one understands, is a brain-melting nightmare to follow, and is impossible to change without constant failure.<p>(Why, yes, I am currently working on a Perl codebase.)