Yet Hart's background - which you might think would give him an even greater understanding of his area - has become something of a roadblock in his professional life.
After spending time in prison on drug-related offences, Hart has a permanent criminal record that surfaces each time he applies for a job.
"The one thing I hate, of all the stuff I've done, and gets me in the pit of my stomach, is an application form," he says. "It's a real case of, 'here we go again'. How far do we have to come in life until the past stops biting me on the behind? It's very disheartening."
… Now, he offers motivational talks. His TEDx Mountjoy talk on the topic has recently gone viral.
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