My wife works as a nurse in a clinic.
Following her words.
The call comes to the post - calls the patient - an old very cute grandfather of 96 years of age, a former captain of an ocean ship, and now a retired with a light Alzheimer's disease. I go into his chamber. Grandfather asks to bring him an apple from the closet, because he himself moves already with difficulty and therefore mostly lies in bed. I bring him an apple, make sure he eats it carefully and leave his room.
A minute after 10 again a call from my grandfather, I go to him, I take the call button from his hand. Grandpa is interested in the weather on the street (seems to have thought of a walk). I describe him in detail the weather, the grandfather thanks, I leave the room.
It takes about 15 minutes and again a call from the grandfather appears on the control. I enter the chamber, take the call button from his hand and learn that he wanted to ask something, but already forgot and apologizes. We crawl, I go out.
Shortly after, my grandfather called again. I go in and wonder what he wants this time, and Grandpa asks:
“Daughter, here’s the button that I periodically press, why is it?! to

R. S. She is a Japanese nurse, a clinic in Tokyo.