《SPOILERS》

[This was after where Roger was revealed to be Waternoose IV]

As Tylor tries to prove Rogers was responsible for everything happening, Roger kept quiet as he had a sad look, his five eyes staring down

Tylor asks Rogers "But... I-I-If that's true, then who were you yelling at on the phone earlier? Huh?" Roger replied "My dad. You see, I thought he got someone to vandalize Monsters, Inc. and they would blame me for it."