Celtic aren't known as Paranoid FC for nothing.
Last time there was a big thing around refereeing and Celtic was a couple of years ago.
A referee gave Celtic a penalty and then, correctly, changed his mind and ordered a bounce-up to restart the game.
This correct decision resulted in everything from heaps of articles in papers about Celtic being victimised through to death threats being sent to the referee and his family.
The refereee quit.
How do you think that sort of intimadation in order to make sure referees don't dare to go against Celtic in the future tallies with Celtic's insistence on fair play?
Remember, though, Celtic fans are the best in the world.
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I always did prefer Rangers over these pricks.
Pity that they don't exist any more.