Vampire at Wal*Mart

[.Shan.]

OKay, I don't remember most of my dream, I'm not surprised; it was kinda freaky I'll admit. But anyways, there were three were three people: me a girl and a boy, I don't even know who they were, we just finished working there, of course it was night, and something happened that the girl and I didn't want to be around the boy, somehow he was in the porch of the store, and I was controlling the lights and locks, I turned them all off but the porch light until last, I got annoyed with the guy so I turned it off. I kept asking him why he didn't want to go, he never answered. And then the girl asked "But where is he going to go?" (lol)We were like planning on sleeping in the store for some reason. So I finally gave up and unlocked the door, the girl went into the porch to get him inside, they were talking for awhile and then they both screamed and ran back to me, terrified, I asked "what, what is it?" The girl whispered that there was something in there. And for some reason I knew that it was a vampire and that he wanted the boy. But before anything happened I woke.
Can someone please tell me what they think it means?