Automatic-drug test

I work in a Drug Testing Lab and we do random drug testing, clients are responsible for calling in every day and listening for the group numbers of that day, if they do not show up when their number is called it is then an AUTOMATIC "No Show", if they show up and cannot provide a sample then it is reported as "Refusal" Which also means and AUTOMATIC "positive" result. Just my little take on the word Automatic.