Back at the staffing firm I used to work at, the person in charge of running background checks did it incorrectly for one candidate and missed that he was convicted of a violent crime and therefore wasn’t eligible for hire. I went through the whole interview with him, and he promised me he had no felonies on his record. Afterwards, the coworker in charge of background checks told me she ran it wrong and this guy DID have a record. I called him back, he didn’t get my message, and showed up to new hire orientation. I sat him down in an office and told him what we found. He admitted to it, threw a chair into the table, and stormed out. It scared me to death, and it was actually the first interview I conducted alone.