Acoworker has been coming into work repeatedly late and seems very preoccupied with issues she is having outside of work. her performance has been unusually poor and she is acting in a rude and unacceptable way towards the patients; yesterday she told you that she had just been given a verbal warning. now, this morning, she is late again and has called to ask you to cover for her until she can report to work. how do you handle the continued behavior that you are witnessing?