The words common sense were mentioned quite a bit during Shaneen Allen’s hearing yesterday in Atlantic County Superior Court.

Allen, 27, cried for a moment in the hallway with her son Naiare and his father after a judge denied her motion to dismiss weapons charges filed against her in October and refused to overturn a prosecutor’s decision to deny her entry into a first-time-offender diversion program.

So Allen walked back into court, turned down a plea deal that would have given her a 3 1/2-year sentence and decided to go to trial in October, hoping a jury would use some common sense and not send a working mother of two to prison for not knowing New Jersey’s gun laws.