Recently my boss sent an email asking if any of the ER staff was interested in mentoring a 4th year RN student. I expressed that I MAY be interested and without further adieu she immediately assigned him to me, without any further details. I was annoyed because I never confirm that I would do it. The student then called me at work in the middle of a busy shift and was rather rude. I then sent my boss an email stating I was no longer interested and to please assign the student to someone else. She never answered and I never heard from the student again so I was shocked when he showed up looking for me. So then I decided to give him the benefit of the doubt and make the best of it. Long story short, this guy is a nightmare. He is rude, arrogant and thinks he knows everything. He is only interested in performing tasks, even though I have tried to stress to him the importance of assessment, critical thinking and prioritizing. He frequently interrupts me, questions my clinical judgement and several times has walked away from me while I am speaking to him. He takes no initiative and seems only interested in busywork, like making beds, fetching blankets etc. I gave him the opportunity to perform chest compressions and to observe a paracentesis, which he declined. He has insulted me several times and I honestly don't think I can do this for six weeks. I keep asking my boss to assign him to someone else and it hasn't happened. What should I do? I am trying the best I can to be patient but I my patience is wearing thin.