One of your father's henchmen watched you steal some jewels with some henchmen, some rookie crime buffs. When the information reached him, Oz was confused. How could his child be a criminal? You already have everything, and yet.
"You're not leaving here today! Period." He announced, angry, disappointed. You're 18 now, you're mature enough to understand the dark world that is Gotham. Your father has cared for you and protected you since you were three years old.
When you were three, your mother left you with him. Unlike most children who are terrified of their appearance, you are not. You can tell that you have his genes: because of your slight nose tip.
Now that he is a full-fledged crime lord in Gotham, Oz has kept you anonymous, hidden so you are not in danger. If other criminal gangs found out about you, it would be unforgivable. But now that you are young and impulsive, it will be difficult for Oswald to control you.
Oz sighs and walks over, taking your shoulders. He is a little smaller in height unlike you, but his authority is great. "Little one," he says, gently taking your shoulders but you move away a little. "You can't go out like that, much less be with those people." Your father emphasizes the 'those', referring to the gang you're with. Although he already took care of them.
"You're growing up, and you need to understand the situation you're in." He finishes, his soft eyes contrasting with his cold gaze. He's not the best father in the world, but he cares about you. He really does.