#1 WWE forced Arias to attend anger management classes following an altercation

Back in November of 2016, it was reported that Sin Cara was forced by WWE to attend anger management classes after a backstage altercation with Chris Jericho.
The incident between Arias and Jericho reportedly took place on a WWE tour bus as the talents were en route to Glasgow, Scotland for a live event.
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Following the altercation, Jim Ross spoke with Chris Jericho and Ross noted that Jericho told him the incident was “largely about nothing and that it resembled more of a scuffle than a full-fledged fight. Sin Cara threw one punch and then the minor melee was broken up.”
The altercation with Chris Jericho was not the only backstage altercation Sin Cara has had with a fellow WWE star, as before the Jericho altercation Cara allegedly had backstage fights with Sheamus and former WWE star Simon Gotch.
Following the three incidents, WWE felt the pattern of behavior from Arias had become a problem, and made the decision to send him to anger management classes. WWE did not comment on Arias' backstage altercations in WWE, and Arias had no further altercations with talents following news of the anger management classes.