St Johnstone chairman Steve Brown has issued a stark warning to Perth fans ahead of their latest European night misbehave and you could cost your club a heavy financial punishment and find yourself banned from McDiarmid Park.
Saints supporters have become used to big crowds and famous wins in the Europa League qualifiers over the last few seasons.
But an unfortunate side-story has been £20,000 worth of fines.
Armenian’s Alashkert FC will be welcomed to McDiarmid for the return leg of the first round on Thursday evening, as Tommy Wright’s men seek to overturn a 1-0 deficit.
But Brown has made it clear that there is a line supporters must not cross as they back their team.
He said: “The atmosphere at our home European ties these past three seasons has been absolutely tremendous unforgettable but through a mixture of over-exuberance, lack of awareness and in some cases, plain misbehaviour, we have sailed close to the wind on some occasions and were hit hard last season.
“Uefa have a zero-tolerance approach to a range of issues and they have a delegate at every single tie whose job it is to report any such incidents to the governing body. “Against Rosenborg two years ago a flare was let off prior to kick off and last year a supporter chose to briefly display a Palestinian flag at the game against Spartak those two incidents have cost the club over £20,000 in fines.
“The bottom line is that there are a range of behaviours which are unacceptable and this applies to domestic football as well but Uefa are particularly stringent on their implementation and which we cannot allow to happen.
“Racist or abusive chanting, pitch incursions, any form of firework or pyrotechnic, the displaying of religious or political flags these will all land the club in hot water and our previous misdemeanours will be taken into account when a punishment is being handed out so I would appeal to all fans to play their part in ensuring that we do not fall foul of UEFA.
“Extensive searches will be carried out on supporters by stewards on Thursday and I would appeal to fans to turn up early to ensure that these can take place and still have people in their seats in time for kick-off.
“Any supporter who is identified as having behaved inappropriately or having brought the club into disrepute will be banned from the stadium for life – I can’t be any clearer than that.
“These are great occasions to be involved in but with the higher profile comes a higher level of responsibility.”