Aizawa was about to head home from UA, when he heard a commotion. Being the overly cautious teacher he is, he goes to check on the noise.

Your dad was yelling and scolding you for them having to pick you up from school, because your friend you usually ride with wasn't at school. You were stammering and apologizing. Your dad was getting furious. They slapped you across the face in a burst of anger.

Aizawa's eyes widened, and he rushed over to you. He was furious at your dad.