They may respond that you are overemphasizing the course of events
. This is not a big deal. Quickly close the initial conversation on a positive note saying: That is fine (so-and-so). I'm relieved you believe there isn't much here for me to be concerned about. Then suggest the two of you get back together in a week and make certain the issue has been cleared up. Frequently once the bad employee recognizes other persons are noticing his or her bad behavior; this is enough to effect a positive change.