One day, a porcupine comes to stay but he is very rude and doesn’t want to share anything with Sam! 豪豬來跟Sam玩了,但是牠卻非常自私,所有的東西都不願意分享,Sam只好到別的地方去玩,因為自私而變得孤獨的豪豬會怎麼做呢?