ok as you know im new at having a puppy and i just now bout a kong, the smallest puppy kong, the one for teething. i bought the right one right? well now, how do we work it? can someone explain to me? i havent stuffed it with peanut butter but roxy absolutely refuses to chew on teh kong, theres no peanut butter in it yet. well so someone help me. i wanted to hear from you all before i stuff it with peanut butter.