Professor Snape’s eyes glided over each of us and paused on the Greengrass’s and myself. He finished and looked at Umbridge, "I’m afraid you have used up all my stock, interrogating students. You have also prevented one of my star pupils from helping in creating more." The way his eyes glanced at Harry, he was lying. He was protecting him from being given Veritaserum. I also knew it was a lie since I remember seeing more of it hidden in the cupboard. I made no motion, I couldn’t do that to Professor Snape or Harry. I’d rather Umbridge think it’s all gone. "Unless you wish to poison him, I’m afraid I cannot help you."