The way Mickey can be protective and concern of Rocky. When Rocky considered fighting again and tried to convince Mickey to train him, he slaps him on the right side of the face and got him to face the truth about his bad eye.
"...you didn't see that coming, did you? And that was from an old broken down bum like me. What do you think that champ will do to ya?"
- Mickey does give Rocky a job at his gym, but he has too much respect for Rocky to let him be seen carrying out mundane tasks, and worries that the guys will not respect him as much. He finally gets fed up with the humiliation that Rocky is going through, part of it thanks to Apollo Creed, to the point where he goes full on Papa Wolf and decides to train Rocky again.
"I say we knock his block off, kid!"
- Despite being disgruntled towards Rocky's poor performance in training, he decided to stay with him while he's going through his Heroic BSOD, even if it means failing the fight.
"Well if you're gonna blow it, I'll blow it with you."