Arsene Wenger, usually so composed and erudite in front of the TV cameras, allowed his cool exterior to slip on Monday morning as he answered questions at an Arsenal press conference.
The Frenchman, fresh from an embarrassing FA Cup defeat to Blackburn on Saturday, took his seat following a flurry of reports regarding his future at Arsenal, and wasted little time in providing his riposte.
Then, when asked about the loss at the weekend, Wenger refused to talk about the Rovers game, but would only field questions about the imminent clash with Bayern Munich, and even rejected some of those from a shocked gathering of reporters.
Wenger's tirade served as evidence once again that even those usually unperturbed can suffer a meltdown amid the glare of the media, which has prompted GMF to highlight some other memorable instances where managers have blown a gasket.
"I have to talk about facts," said Rafael Benitez shortly after his press conference began, rustling about for a piece of paper on which he had creepily penned the misdemeanours and movements of rival Sir Alex Ferguson like a goateed stalker.
Benitez was far from pleased about Ferguson's claim that Liverpool would wobble in the race for the Premier League title, and the Anfield boss proceeded to highlight instances he felt showed preferential treatment for Ferguson from referees and the FA.
The Spaniard took five minutes to deliver his 957 word critique but, unfortunately for Benitez, Ferguson was right as Manchester United went on to beat Liverpool to the Premier League crown.
Benitez was not the first, and will not be the last, manager to allow the specter of Ferguson to haunt their every waking moment, with Kevin Keegan's TV breakdown early evidence of the Manchester United manager's ability to infiltrate the minds of his rivals.
Keegan, all greying mullet and sleeves rolled up to the elbows, had just seen his Newcastle side narrowly defeat Leeds at Elland Road and was riled by suggestions that teams exerted themselves more against Manchester United than the Toon Army.
With Newcastle's 12-point lead almost overhauled by Manchester United, Keegan finally succumbed to one of Ferguson's barbs and addressed his rival in an eye-bulging post-match rant.
Mike Ashley stunned partisans and neutrals alike with his appointment of Joe Kinnear as Newcastle's caretaker manager in 2008, and the former Wimbledon boss soon stunned journalists with an expletive filled diatribe of quite staggering savagery.
Kinnear hardly paused for breath, throwing swear words into the air like confetti in response to, what he claimed, were inaccurate reports about his brief tenure with Newcastle.
He racked up a remarkable count of 52 curses in just five minutes as he used copious c-words and f-bombs and in one of the most industrial press conferences ever given.
Harry Redknapp has garnered the persona of a cuddly uncle in recent times, willing to spin the yarn with hilarious tales of yesteryear, even if the last thing you want is to listen to his incessant rambling.
But Redknapp can dish out a tongue lashing when it is required and, while still manager of Tottenham, took exception to a mention of his previous guise - that of a cockney market trader known for his impressive transfer market coups.
As soon as the phrase 'wheeler-dealer' was mentioned, Redknapp's naturally puce faced turned a more violent shade as he reproached the reporter in the language of his forefathers before storming off.
Roberto Mancini has been required to respond to questions regarding his future as Manchester City from almost the very moment the season began and, naturally, the Italian has become tired with such lines of inquiry.
Back in November as Manchester City faced the ignominy of Champions League failure for the second campaign in succession, speculation was rife that the poor performance could cost Mancini his job.
Before playing Ajax, Mancini was unable to contain himself when the subject of his position arose, and the former Inter boss demanded respect with his face contorted like he'd swallowed Professor Frink's Super Sour Ball.