13 weeks? I thought puppies were still in the "I love all people" phase when they're that young? That's sad... my in-laws don't understand the concept of socialization either (probably because THEY have no friends and never go anywhere themselves)... the first time I met their beautiful 5-year-old dog, he was skittish and jumpy and cowered from me and took literally months to warm up to me. Very sad when a puppy is brought up in that environment.