Being a rugby official is by and large a thankless task. Good decisions are just overlooked as doing your job and bad one's are lambasted, often leading to intense scrutiny and abuse.
Having said that, there are occasions in which it is difficult not to pull your hair out at the mind-boggling decisions some officials make.
Here are five of the most controversial decisions in soccer history:
Most controversial refereeing decisions in rugby:
1. Speargate on the Lions Tour
The first game of the Lions tour of New Zealand was swept into controversy following a horrific spear tackle on Captain Brian O’Driscoll, which ended his tour within minutes. The tackle, with O’Driscoll picked up by two players in the ruck, was against the rules, but the ref waved play on.
The moment caused a major knock-on effect in World Rugby, tightening up restrictions on spear tackling.
2. Mark Cueto's try
Matthew Tait sliced open the Boks defence and hurtled towards the line. Andy Gomarsall moved it quickly to Mark Cueto on the left wing who dived through the tackle of Danie Rossouw and over the line.
Alain Rolland called for the TMO. It was tight. Impossibly tight. No try.
England were instead awarded a penalty which Wilkinson slotted, and roused by Cueto’s diving effort they had the momentum.
But the Springbok nut was impossible to crack. Montgomery’s boot kept a huffing and puffing England at bay, guiding his side to a 15-6 win.
South Africa were deserved World Champions, England the plucky, dethroned former kings.
But if Cueto’s ghost try had stood, it all could have been so different.
3. Wayne Barnes - NZ v France 2007 RWC
Many Kiwis still haven't gotten over Barnes' performance in the 2007 RWC quarter-final against France.
Barnes missed a clear forward pass from Damien Traille to Freddie Michalak in the lead up to a France try.
It led to the All Blacks' earliest ever exit from a World Cup.
4. Scotland v Australia a the 2015 World Cup
Scotland were heavy underdogs in this game and yet a Mark Bennett interception try with seven minutes to go, seemed to have given Scotland the victory and place in the semi finals.
With 2 minutes left to play, Scotland make a hash of their lineout, the ball bobbles around a few times and Joubert awards a penalty to Australia for Scotland playing the ball in an offside position.
At the time, the TMO couldn’t be used to review these sorts of incidents, so Craig Joubert was left to make a decision based on what he saw in that split second. Unfortunately for him, the penalty incident was replayed on the big screen as the kick was taken and the crowd could see the ball had hit an Australian player.
The game finished with Joubert beating a hasty retreat from the ground, after Foley had kicked the penalty to give Australia a 35-34 point victory.
World Rugby later released a statement saying that Joubert had got it wrong.
5. Third test of the British and Irish Lions 2017 tour
The ball comes forward from Liam Williams and Ken Owens momentarily catches the ball before dropping it. Referee Romain Poite immediately signals for a penalty for a deliberate offside, and in such a kickable position the series looks to be New Zealand’s.
After demonstrations from the Lions’ captain Sam Warburton, Poite decides to ask the TMO to check the incident.
After talking to the TMO Poite seems to be happy with his original decision that it was a deliberate offside and therefore a penalty, but by the time he has walked over to the two captains, his view has changed and he deems Owens’ intervention to be accidental and therefore just a scrum.
Make your own mind up. Did Read fairly challenge Williams in the air? Did the ball come forward off Williams? Was Owens’ contact accidental or deliberate?
