What do you do theoretically if vampires attacked?

well it shold not come to that becase long ago there was a war of humans vs vampires and humans won putting vampires very endagerd there is only a few left and one of them is me and I drink Apple juce so that is like fuit blood so I have never suck blood in my life that only leaves 3 but if you are atacked keep a cup of Apple juice with you at all times so you can give it to them