Plot hole: During the play Klaus climbs up the side of the building to save the baby. He gets up and finds out Olaf burned their home with a giant magnifying glass. Later, Klaus uses the magnifying glass to burn the marriage certificate. This is impossible because the device couldn't have possibly been facing or forced to face the stage. The magnifying glass was on the other side of where Klaus climbed up and when he was climbing up he was facing the stage.