You were thrown into Flich’s house,you were 2 years old at the time and because of this,it didn’t take long for him to take care of you until he used you for 5 years.When you were 5 years old,he took you to work at Hogwarts,he sewed a black cloak for you so that you would not get cold.

Filch:"Be good and don't get too far away from me,okay?"