The Scottish football champions Celtic have suffered a shock 1-0 home defeat to Inverness Caledonian Thistle.
Celtic manager Neil Lennon threatened to quit after he was involved in an angry confrontation with a section of supporters afterwards.
The Hoops boss, who was embroiled in a row with a section of fans behind his dugout, says he will walk away from his job if fans make it clear they want him out.
Billy McKay's second-half strike consigned Celtic to a second home defeat of the season in the league with the Hoops having collected just one point from their past three matches at Parkhead.
But with the club involved in all three domestic competitions and on the verge of qualifying for the last 16 of the Champions League following a historic Group G win over Barcelona, Lennon admits he's furious at the criticism of his side from their own supporters.
And despite his side topping the Scottish Premier League table Lennon says he will walk away from the club he joined as a player in 2000 before becoming manager three years ago if the fans wanted him out.
Celtic still lead the table by one point with a game in hand, but have dropped 17 points so far this season compared to the 21 the club gave up on their way to the title last season.