forgot to mention on both my flights the Pilots when they needed to to the lavs, Simply opened the Cockpit door and went on their way as if it was 9/10/2001. the FA was helping sell the food in coach with the other 3 FAs. Nothing except the curtain bet the cockpit and Biz section.
One time as I moved the curtain to go myself the CP door was wide open as the Pilot was coming out himself.