[lotsoweiners]

> So wouldn't the bg check expose the candidate? (E.g., my boss would know I'm thinking about leaving)

HR at the orgs I've worked for call that a reference check and it is usually concurrent with the other background check processes before the offer. The background check I'm thinking of is more like criminal history, work eligibility status etc., potentially drug screening etc. I know I have no criminal record but I'd really like to know that whatever service HR is using to screen agrees with this before I quit my job.