Airport staff have been left feeling shirty - thanks to the crafty actions of Leeds United and Everton supporters.
In a summer trend that has triggered sighs and shrugs of shoulders, fans of both clubs have taken to placing their team's jerseys over those of their biggest rivals inside shops at Manchester Airport.
In Leeds' case, members of the Elland Road faithful have been taking white shirts off the rack and then using them to cover the displays of Manchester United jerseys.
And those from the blue half of Merseyside have been following suit - placing their shirts over those of city rivals Liverpool.