Before venturing into action, I would request a heart-to-heart talk with the employee. I remember the lesson I learned way back in the early 80s. We had recruited a telex operator for the marketing unit (no email, scan, fax, or SMS/WhatsApp in those days) who had to type messages running to several pages. The fellow was very good, efficient, and well-behaved. After about six months, he started showing indifference, and in a couple of months, he became indisciplined, disrespectful, and slightly abusive towards everyone. The decision was made to let him go. The matter was then referred to HR for action. When he was called, he vented his anger and frustration. Being in the international marketing department, he was constantly dealing with telex messages and was confined to a small cabin, often having to work late. His frustration with isolation manifested in his behavior. By assigning a typist with spare capacity to the telex department, all issues and frustrations were resolved, making the office a better place. Although disciplinary action could have been taken, I believe it's essential to understand the underlying issues and address them.