Happens on Med-Surg, too. I had a patient with an unstable heart rhythm. I will admit it took me some time to settle it down, get the Dr. on the phone, IVP meds and calming the patient and family. However, amazingly, I had no other patient call lights come on during this time.
Well, I walked into my next patient's room to do a routine assessment. She had orders for discharge and was just waiting for a ride home. She looked at me and said "I don't want you. I want a nurse who has time to see me. I have been waiting more than an hour since you came on duty."
I told her that wasn't a problem, I would get her a different nurse and walked out of the room. I called the charge nurse and she re-assigned the patient. The charge nurse came to talk to me later about it. She said that she went in to talk to the patient (cause we're all about Press Gainey scores now) and the patient assured her that she hadn't needed anything. She just expected that her nurse would be in to see her in the first few minutes of the change of shift and if this hospital couldn't provide that she wouldn't be back.
Her loss. We are an awesome hospital with awesome nurses who take care of unstable heart rhythms:)