These lies go well beyond Santa Claus/Tooth Fairy level.
Parents can come up with some pretty hilarious fibs- and how can you blame them when kids are so gullible?
When I was young, my mom was trying to get me to break my habit of sucking my thumb. I couldn't fall asleep without my thumb in my mouth, and my mom told me if I kept doing it I'd wake up one morning and my thumb would be black. I got scared, but not scared enough to break my habit. The next morning, I woke up and my thumb was black! It faded in a couple days, but my thumb-sucking habit was scared out of me. Later, I learned my mom had come into my bedroom in the middle of the night and colored my thumb with a black sharpie.