I do the same as CC, just retreat the item with maybe the occasional wiggle. I usually feed fresh kill or, when the freezer is getting a bit full, frozen. At the moment my female coastal is refusing everything I offer, even prey killed just seconds before offering. I find this strange because she is definately adopting striking poses and carousing the enclosure hunting. I've wasted three rats this week due to her refusals, so now she waits for the next scheduled feed and I'll see what happens then.