Dr. Brown, Universal Studios' "Back to the Future"
- "Erased from Existence"
Now remember, according to my theory you interfered with your parents' first meeting. They don't meet, they won't fall in love, they won't get married, and they won't have kids. That's why your older brother's disappearing from that photograph. Your sister will follow, and unless you repair the damage, you'll be next.
Professor Dumbledore (Warner Bros. Harry Potter and the Prisoner of Azkaban)
- Dumbledore's Dementor Announcement
Dementors are vicious creatures; they do not distinguish between the one they hunt and the one who gets in their way. Therefore I must warn each and every one of you to give them no reason to harm you; it is not in the nature of a dementor to be forgiving. But you know happiness can be found even in the darkest of times; if one only remembers to turn on the light.
