I was looking around the crowded hall for the restroom when I realized that the line for it had already trailed all the way down the stairs from the floor above. With no other choice, I stepped into the back of the line. The line was slow moving as I got to take a step up the stairs every couple of minutes. When I had finally reached the second floor, the line in front of me suddenly dissipated. Soon after I was the first in line for the restroom.