Now that summer is here and I am not working, I will be away from my home more. Therefore, I wondering about the times I need to give shots to Rocky. I usually give them around 8am and 8pm. What happens if I'm not at home, especially at the evening hour? How long can time go between shots. In other words, how late or early can I be? I really don't want to mess up his schedule, but I do have a life too.