In all versions of the character, Scooby and Shaggy share several personality traits, mostly being cowardly and perpetually hungry. Yet their friends (Fred, Daphne, and Velma) encourage them to go after the costumed villains, usually with "Scooby Snacks". The biscuit-like dog treat or cookie snack is usually shaped like a bone or, in later versions of the cartoons, Scooby's dog tag. However, Scooby's inherent loyalty and courage do often force him to take a more heroic stance even without any prodding. Scooby is also extremely ticklish, and this is seen in many of the television series and movies.