My friend Beth is a chronic pain patient on the fentanyl patch. She went in to her pain management Drs. office yesterday and they now have a system for doing urine screenings. She's fine with that, but we both are confused by their system. The nurse was so proud that their system (a regular bathroom) you didn't have to be watched by anyone because they could turn off the water in the sink, and soon they would be able to turn off the water in the toilet as well. How does this help them - we are very confused.