What's the story behind Tina Fey's scar?
As bizarre as is sounds, when Tina Fey was 5 years old, she was attacked by a stranger and slashed across the face with a knife. The attacker was never found.
If you don't believe what you just read, you can read about it yourself in Tina Fey's book, Bossypants.
A random act of violence of this nature could be enough to severely traumatize a normal person. Tina Fey has shown her strength by perusing a public career that places her image in front of millions of people.