In Wicks v. State, 270 Ark. 781, 606 S.W.2d 366 (1980), the supreme court recognized the following four exceptions to the objection requirement: (1) death penalty cases involving an error in a matter essential to the jury's consideration of the death penalty itself; (2) cases where the trial judge made an error of which the appellant had no knowledge; (3) cases where the trial judge neglected his or her duty to intervene; (4) cases involving evidentiary errors which affected the appellant's substantial rights. The supreme court has steadfastly refused to expand these exceptions.