A trip to the mall or neighborhood park will bring you all the attention you can handle. This may be wonderful for a young man looking for a date, but it can be deadly for a small puppy. Until a puppy is fully immunized against parvovirus, at about the age of 20 weeks, it is not safe to take him to areas frequented by other dogs. Many people solve this problem by taking the dog to visit friends and relatives in "clean" environments and asking them to return the favor. Some Shibas may be shy of strangers while others are dog aggressive. Early socialization is mandatory to obtain the best possible temperament from a puppy.