Bert smiled. "It was much different back when I was a young vampire. Our blood bags were covered in meat, if you get my meaning. In that day, the school had livestock. Each vampire had a small variety we were responsible to keep and could feed from. It wasn't the worst way to go, though the animals hated us, understandably." Bert shrugged his shoulders. "So that is one way. There are many ways to survive, if one is careful and creative."