I had a test in which I had to disrobe and have an enema catheter inserted in my rectum.  The procedure was hard enough, but when a nurse came in to use the computer I was somewhat upset.  It was explained to me that it was as busy day, but this room had no curtain to pull around me, and the door kept being opened...by the nurse using the computer and by a doctor who came in to get something.  And all the while they were opening the door, anyone on the outside could see what was going on with me.  It was a very discouraging 
LGH GIL