Notes from three nights on the 14 bus

For the night buses series I rode the last 14 from the hospital three nights in a row (sample).
Each night the bus left at 22:40, twenty minutes before the late shift ended. Each night between six and nine people walked out of the main gate and started the 50-minute walk home.
Part 2 of the series asks who changed the timetable, and whether anyone asked the hospital first.