Multitasking and the Restroom
Studies have shown that the brain is not "wired" to handle complete focus on more than one task at a time. Multi-tasking is truly the brain bouncing back and forth rapidly between two tasks. It is recommended that the most effective multi-tasking is when you are doing mundane or routine tasks that don't require too much thought. (Actually, I must admit that walking and chewing gum at the same time for me is a challenge.)
That being said, I must mention a multi-tasking pet peeve I am seeing way too often. I don't know if this is happening in the Women's Restroom but it happens all the time in the Men's-especially in the airport. Men will go into the restroom while talking on their phones and will carry on a conversation while taking care of business. (I guess you could say that some are taking care of business while taking care of business). I wonder what Emily Post would think about the etiquette of that? Multi-tasking should have some boundaries.
As a side, when someone is talking on the phone in the public restroom and I am next to them, I personally like to see how many times I can flush so that the person on the other end of the phone is wondering what is going on.