While sparring with Mihawk, Zoro dodged to the wrong direction. He's suppose to dodge to the right but instead moved to the left, thus the left eye scar.
He never lost it. It is a scar over his left eye that has been there after the time skip, and many fans are theorizing on what might have happened to it. For example, Zoro has a hidden power sealed beneath his left eye, and when he opens it, a hidden power is unleashed.
"Hawk-Eyes Mihawk! Swordsman Zoro Falls into the Sea!" is the 24th episode of the One Piece anime.
If you are a current federal employee and fail the test, you will probably be placed on administrative leave. If that happens, you should contact a federal employment law attorney as soon as possible to begin preparing a defense.
In a real life setting an inconclusive result simply means the examiner is unable to render a definite diagnosis of truth or deception. In such cases a second examination is usually conducted at a later date.
A lie detector test includes more than the time spent hooked up to the polygraph machine. The tester will start making observations the instant a person enters the test center. A skilled polygrapher will notice and record nonverbal cues associated with lying, so it's a good idea to know your "tells".