Sir Alex Ferguson's 'hairdryer treatment' became infamous during his time managing Manchester United, earning him mythical status amongst fans and pundits alike.
And while the Scotsman was known for having a short temper, he has insisted that he never ruled the club with fear.
He claims that he set high but clear standards for what he wanted from his players, and because of this he only had to use the hairdryer treatment six times throughout his entire spell as Red Devils manager.
Ferguson arrived at Old Trafford in 1986 and picked up a stunning 13 league titles and two European Cups before bowing out of the game in 2013.
And since then the 74-year-old has been enjoying his retirement, while still finding the time to share some of his bountiful wisdom and insights as manager of one of the most famous clubs in the world.
Speaking at the World Business Forum in Milan this week, he opened up on life at the club and insisted that fear was never a factor in how he got the most from his players, and instead instilled a positive winning attitude amongst his squads, while making sure they knew their duty in representing the club.
And when asked about the hairdryer treatment he replied: "There was a lot of myth about it. It happened about half a dozen times in 27 years and the players will tell you that," said Ferguson, as originally reported by The Sun.
"The problem for me was if a player answered me back, I headed towards them. That was my problem.
"Jock Stein always said to me, ‘Leave it until Monday to talk to them,’ but I said I couldn’t wait until Monday. So, on a Saturday after the game, I told them exactly how I felt, because we had trained at a level all week that I expected to win every game.
"I told them exactly the truth and the truth works. All the players understood that and it was never held against me. Then the next day it is pushed aside and I’m prepared to win again.
"I never ruled by fear. Name a Manchester United team that played with fear."
Giving Becks the boot
And while we're not disputing the great man's claims, there were certainly enough stories to back up the suggestion that his anger was something a player would want to steer clear of.
One of the most well known stories involves the time he kicked a boot at David Beckham in the dressing room, resulting in a gash on the player's perfectly sculpted forehead.
But when you're in charge of a group of highly-paid egos, it's important to be able to exert your authority.
And boy did he do just that!