My friend lives in a fancy neighborhood and I went to pick her up one day.
The house right next to hers had blinds (outside) in all the windows including a huge blind covering the front door. They were legit blinds (like professionally installed) too and they were all shut... it was creepy to say the least, considering there were no cars on the driveway and the house looked like nobody was inside of it.
My friend doesn't even know who lives there. My guess is that maybe someone with a rare skin disease lives there. but it's so weird, and I had never ever seen a house with all of the windows covered before, so yah. vampires... or w/e