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This was in Texas -- the child is lucky his mother didn't shoot him.
Which end of the belt did she hit him with, the buckle end?
What was she going to do if the boy didn't pull over?
Notice the boy's name is Aaron and his sister has a different last name -- these are step children, with no father. Figures.
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If it were California, the child would be seized by CPS and put into foster care and the mother could face jail time and a stiff fine.
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No parent is allowed any more than one swat with an OPEN HAND on the buttocks of the child, only.
-- Not two swats (or more), only ONE is allowed.
-- Nowhere else on the body is permissible.
-- The swat cannot leave a mark - any redness or bruising, and you're in a world of trouble.
-- No other implements are permitted: no stick, no belt, no boat paddle, no bullwhip, no shoe, no scourge, no nothing but an open hand.
-- Closed hand is not a swat but rather it's a punch.
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When CPS comes to call and you refuse to let them come inside the front door, they call for reinforcements and the police shows up.
Within an hour they'll have a warrant in hand, and don't think about escaping out the back door because they'll have that covered, too.
The Communist State of California, where Governor Moonbeam Brown is just the tip of the iceberg.

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If she had made him get out of the car, she'd have to wait for him to first get his wheelchair out of the back seat, which he needs since the last time his mother beat him to a pulp with a bullwhip and a baseball bat.