The first day at a new job is a nervous time for anyone but most of us manage to get through it incident-free.
However, the same cannot be said of French referee Stephane Jochem after he sent off the wrong player during his first game in charge of a Ligue 1 match.
The 35-year-old had spent years working his way up the French football league for a shot in the big time and would have no doubt been delighted when his opportunity came this season in a match featuring Valenciennes and Toulouse.
But 38-minutes in to his debut, disaster struck.
Gregory Pujol fired in a cross for Valenciennes and when Toulouse defender Steeve Yago pulled back the striker, Jochem correctly awarded the penalty - all good so far.
But he then shocked everyone by showing the red card to Uros Spajic instead of Yago before refusing to listen to the player's pleas.
The crazy decision and intense scrutiny was surprisingly shrugged off by the official after the match who decided to blame his fourth official for the mistaken identity.
That thick skin could serve him well if he is to continue making similar mistakes.