Mother

Here's a little short story I wrote a while back. Let's see if anyone can figure out the message I'm trying to send.

Mother

A young boy was being yelled at by his teacher. "David Henry, do you not understand the meaning of the word sit? If you're going to continue to misbehave, I'll be forced to call your mother!"
"Good luck, replied the black-haired, skinny seven-year-old, "She hasn't answered the phone in four years." Then, he said some foul words.
The teacher looked furious as she said, "Who taught you those words? That is not proper language! Okay, that's it. I'm calling your mother." She rummaged through a green filing cabinet until she found the folder labeled "Henry, D." Briefly glancing at the first page, he reached for her phone in her pocket. There was one small problem. Her pockets were empty.
What was going on? Where had the phone gone? She looked around. It wasn't in her desk, and her sweater didn't have any pockets. Then, she saw it. She had forgotten that she had plugged it in to charge it. She disconnected it from the charger and dialed the Henry residence number. Her phone began beeping and she heard the call tone.
The phone in the house began ringing. A deep voice answered the phone. "Hello?" it said. Mrs. Jones said, "Hello. This is Barbara Jones, callling from Our Lady of Fatima School regarding David's behavior in class. With whom am I speaking?"
The deep voice replied, "This is Kenneth Henry, David's father. Is something wrong? Has David been acting up again?"
"Well, yes," Mrs. Jones said, ignoring David's constant pleas of mercy, "David has been refusing to follow any classroom rules and has a blatant disregard for authorities. He shows no respect to anyone including his peers."
"Rules and respect are weak. You waste my time."
"Mr. Henry, I believe I am starting to see where David gets his behavior and bad vocabulary. Is your wife home? I would like to speak with her. There are a few things I need to ask her a few things."
"She's not here right now, and I won't be able to have her call back or go to any parent meeting."
"And why can't you give her my message?"
"My car is broken down and I don't have enough time to drive to the cemetary to visit her grave."
He hung up.

little boys need their moms is that the message?

No. And the mom in this story is dead. -_-

Then what is the message????????