In Collier v. State, 959 S.W.2d 621, 625 (Tex. Crim. App.), cert. denied, 525 U.S. 929, 142 L. Ed. 2d 276, 119 S. Ct. 335 (1998), the Court explained that a hearing on competency to stand trial is called for only if evidence brought to court's attention raises "a bona fide doubt in the judge's mind as to the defendant's competency." A bona fide doubt is raised "only if the evidence indicates recent severe mental illness, at least moderate mental retardation, or truly bizarre acts by the defendant." Id.