If it's about an ex-employee it's at least _possible_ that they're actually trying to help you, but it doesn't even make sense for a current employee. You want

If it's about an ex-employee it's at least _possible_ that they're actually trying to help you, but it doesn't even make sense for a current employee. You want to warn me that this person is so awful that I shouldn't even consider hiring them, but you haven't fired them yourself or you aren't happy about the person you hate but can't fire for some reason choosing to leave on their own?