Dr. Tracey Cooper:

As I left a ward at 2 a.m. one morning - not in this country - a voice asked me had I washed my hands. I looked around and realised it was an automatic voice machine beside the dispenser. I went into the toilet area and a voice notice said: "You are in a dirty area. Have you washed your hands?" These were all sensor-triggered voice alarms. There was no one in the room. I was embarrassed and I washed my hands. There are innovative methods for addressing this issue.