It is your paranoia!!!
He has reffed us 11 times, 7 wins, 1 draw and 1 defeat (not reffed an Aberdeen celtic match yet). We have had 26 yellows and 1 red in the 11 matches compared with our opponents who have had 24 yellows and 1 red. We have been awarded 1 penalty compared with our opponents getting two.
So I don't see any bias there, just incompetence usually.