Several come to mind. An elderly lady who would not stop calling. She was on that light every 2 minutes had to pee a tiny dribble every time. She kept getting up pulling the IV behind her. We just knew she was going to end up on the floor. I called her daughter to come in and sit with her. She said, she wears depends, she has them on, I'm not coming in, just tell her if she gets up again without help you will put the posey vest on. I did and she didn't call out more than once or twice more the rest of the shift. It felt like the wrong thing to do but hey it worked. She never did pee in her depends either. I think she just wanted somebody in the room.
The ones who really make me mad are the one who ask for the nurse. "Can she bring you anything?" "No, I just need to talk to her". You go to the room and they're like "can I have a cup of ice"

Yesterday: "can my daughter have a coke". Her daughter was at least 50 years old (my age), I politely told her that the cafeteria was open.