It was because Mr. Ziegler knew what was going on in David's life and tried to make his mother "proud" of David by writing a letter to her, telling the mom how good David was.
Unfortunately, it did not work. The mom then proceeded to call David an "It."
A child from an unwed mother is called an illegitimate child. Also called a bastard.
step child
orphan
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In "A Child Called It," David's mother forced him to sleep in the basement, starve him, and subjected him to physical and emotional abuse.
The male child of a father and mother is called their son, though what they personally call him would be largely a matter of the couple's choice.
It is called Renesmee. Rene because of Bella's mother and Esmee because of Edward's `mother´.
Obstetrics
Dave Pelzer. He's telling the true story about how his mother abused him as a child.
He writes about it in A Child Called It
A parent, an aunt or an uncle.
His mother name is Catherine Roerva Christen Pelzer.