How did Mr. Klein incorrectly handle the conversation about Lucy's behavior?

In the scenario described, Mr. Klein's decision to reveal the name of the student that Lucy was having an issue with raises significant concerns regarding confidentiality and professionalism. When discussing a student's behavior with parents, it is crucial to respect the privacy of all students involved. Disclosing the name of another student not only undermines that child’s confidentiality but can also lead to distrust from parents and strain relationships among students.

By avoiding this indiscretion, Mr. Klein could have maintained a more professional demeanor and focused the conversation on Lucy's actions and how to support her, rather than involving another student's identity. This approach fosters a safer and more respectful environment for all students.