This was a long take exercise.
How we did it:
As soon as it started Laticia ran the fog machine in front of the door. As Jonathan approached we turned off the fog machine for better sound. When Forrest opened the stall, Jordan crawled right past him and hit under the sink. Next, I passed the camera across the sink to Jordan and I ducked under the sink. By now Laticia cleared the fog machine out along with the cables and set the wet floor sign inside the bathroom. The audio equipment was hidden next to the mirror and was avoided with camera work.