Thomas doesn’t suck his thumb

My son sucked his thumb, all the time, almost subconsciously. In bed, he was sucking, at school, he sucking, at the dinner table, you guessed it, he was sucking. As long as he still had thumbs, he was sucking. One day when he was watching Thomas the Tank Engine, and was sucking his thumbs, I told him to stop sucking his thumbs. He kept his fingers inside his mouth and asked why. I was about to say the classic phrase ‘Because I said so’ but instead I said ‘Because Thomas doesn’t.’ Since Thomas is my son’s hero, I knew I had struck a nerve. Ever since that day, he hasn’t sucked his thumb.