At the pet store he picked out two painted turtles, each about as big around as a mayonnaise-jar lid. He bought them a large kidney shaped dish that had its own little island, a plastic palm tree, some aquatic plants, and a snail. The snail, presumably, to bolster the self-esteem of the turtles: "You think we're slow? Look at that guy." To store up the snail's morale in the same way, there was a rock.