I am an eight-week-old bloodhound puppy. My dad took me to the vet to get my shots the other day. The minute he opened the clinic door, a terrible feeling came over me, and I started shaking like a leaf. I hadn’t even seen the vet or had a shot, and wham, I was scared out of my wits. My dad couldn’t understand what was happening to me. All I know is I was terrified. Do you have any idea why I reacted this way?