The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inboxA dad has been jailed after subjecting his two children to shocking discipline tactics with extreme physical and mental punishments.The sadistic dad forced his daughter to write "I am a liar, I'm a stealer" 1,000 times and forced his kids to shave their heads and pour vinegar onto their wounds.Shane O'Brien, 54, left his children traumatised and "feeling less than an animal."The pair, who are now adults, told a court the ordeal left them suffering flashbacks.Shane's partner - the children's stepmother - Denise O'Brien, 49, was spared prison after turning a "blind eye" to the abuse.Both had previously admitted two counts of child cruelty.
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