I think it is all part of the process, like moving onto now the examination.
It give the patient dignity, even if the curtain is closed.
I once had a doctor say he would be back..
20 mins later, he was....with another patient!!
He had totally forgotten I was behind the curtain.
I froze, and after 30 seconds, I got up and said ''what game are you playing here!''
You told me to get undressed,then you leave me 20 mins on the table with no clothes, then you bring in another patient? and totally forget about me.
The look on their faces was priceless, I told them both to get out of the room, I got dressed, and went to make a complaint later that day.