Zim's got a real nose for cookies - apple wafers, actually, but I call them horse cookies. He gets very pushy when you bring out treats, and don't even try to stand between him and a carrot. Gem had to be introduced to treats when she got here. It took her a while, but now she will readily accept cookies and carrots as she knows how yummy they are. Zim is practically indignant when the cookies stop coming. Such a brat!