Pedro Caixinha revealed he has factored refereeing decisions into Rangers' training sessions after their controversial defeat to Hibernian.
The Light Blues boss was unhappy with the performance of official John Beaton as his side slumped 3-2 at Ibrox on Saturday.
Midfielder Ryan Jack was sent off after motioning his head towards Anthony Stokes during a first-half melee, although Rangers successfully appealed the decision.
Caixinha admits his men need to learn to control their temper - and confessed he has even thrown a few contentious calls into their practice matches to drum home that crucial lesson.
"For my players, I can try to get them to control the emotional balance," he explained.
"Sometimes we will take a bad refereeing decision here in the training session to make them understand that things are going in that direction and might happen.
"That's the only way you can train in those circumstances and allow the players to be focused on the tasks.
"That's what we did with part of the analysis after the match.
"But I cannot control what the other players from the opposition teams are doing. I can just control mine.
"I hope that mine have that focus because one of the points we have definitely is to finish all the matches with 11."
The Gers support were left furious when Stokes - already booked following an early clash with James Tavernier - dodged being shown red too despite appearing to grab Jack by the throat.
Some felt the Irishman had deliberately set about to wind up his Gers rival.
Caixinha may feel powerless to stop those kind of tactics but he does admit part of his pre-match preparations for Saturday's visit of Hearts will be to identify the potential trouble-makers in the Jambos line-up.
The Portuguese coach said: "Look, the opponents will play the football they want. It's not up to me to comment on that.
"I just need to understand what is going on and what type of opponent we are going to face and what type of behaviours might come from that opponent.
"It's something we analyse and speak to our players about. We look at the way they play and the way they behave in order for us to be ready."