I heard a story of a guy that quit during indoc at his new airline. One of the managers came into the room and pulled him aside telling him something came up on his background check and they needed to talk about it.
This guy gets hyper defensive saying they shouldn't know about it because he spent thousands of dollars getting his record expunged. The manager basically says well we have it right here so if you could tell us a bit about what happened we'll put you back into class.
So he begrudgingly explains that he was having a tough day and decided to "relieve some tension" That's when the cops found him and cited him for lewd conduct and indecent exposure and so on.
The managers jaw about hits the floor and says "I just wanted to know about an illegal title transfer...."
After a pause that must have felt like an eternity the guy handed him his badge and walked out, never to be seen again.