It can delay the time for medicine or the right treatment to get to "said" patient. Potentially being a life threatening situation/ Long term issue. Due to human error, the patient wouldn't improve and possibly get worse, and the doctor might not notice till next meeting.
(That's in general what I thought the answer could be. Also heh, you from health science class as well?)
Answer:
The Feast of St. Nicholas is celebrated in parts of Europe on 6 December. On the preceding evening of 5 December, Krampus Night or Krampusnacht, the wicked hairy devil appears on the streets.