If you owned a small business with a position open and I called you up and said, hey man, I've got a guy who used to do that. He wasn't very good at it and in fact he was fired from that job... and oh BTW, after being fired he got his friends to march down to his former employer and violently attempt to stop it from happening... it was pretty bad, some people even died! And oh by the way, he's an adjudicated sexual deviant and a 34 time convicted felon currently awaiting sentencing. But he's got four years experience.
Would you hire him?