the way to flag this to an employer is simply. not to air the grievance but to inform them of it if it is public knowledge... e.g you left as a result, it was y

the way to flag this to an employer is simply. not to air the grievance but to inform them of it if it is public knowledge... e.g you left as a result, it was your former employer who will be contacted for a reference, or there was some public exposure etc. they might already know and its in your best interest to be honest. getting found out after the fact is bad, regardless as to your employer's intentions. its really quite different from airing the concerns that led to the situation. in this specific case the problem is that he worked for a short period and was let go very rapidly. having a 2 week blip as your last role on a CV is worth explaining - but not complaining about.