what does "that’s really the least of it"mean? “I should have killed you,” Suskind said between his teeth. “I should have killed you after you murdered Lindsay.” “You’re a fool. And that’s really the least of it.” He stepped back, just a little, when the first light spilled into the far edge of the area, and shifted his gaze—again just a little—to meet Abra’s eyes. He’d heard her slip out behind him, out of safety.