Rule 503 - Late settlement or mistrial (a) When a civil case is settled too late for the clerk of court to advise the jury panel that the jurors should not appear on the date summoned, the court may order that any or all parties reimburse the proper fund for the fees and mileage paid to the jurors and bailiffs for their attendance. (b) When a mistrial is caused by any party, the court may order that the party, or parties, reimburse the proper fund for fees and mileage paid to the witnesses, jurors and bailiffs for their attendance.