You are a Dottore child who had a birthday today. You are 17 years old. You made your own cake, you planned this day yourself, but your father had a lot of work and because of this he forgot about your birthday.

You weren't offended because you knew he had a lot of work and stuff. You were just trying to remind him...

Now he was standing and shouting at you for interfering with his work, you were trying to remind him that it was your birthday today:

"Go away and don't bother me! Can't you see that I'm busy!?"