How many BART employees does it take to (not) change a light bulb?

Why is it that I have never seen fewer than four employees changing a lightbulb on the platform? Today at Powell, there were three standing around, with one up a ladder staring at a socket. After a while, he walked down after not having done anything. After about a minute of (apparently) shooting the breeze, they slowly walked on to the next fixture. Perhaps they needed a fifth worker to go and fetch the bulb? (The last time I saw a similar scene at 12th St Oakland, there were four people standing around, and the one on the ladder was actually installing the bulb).

Comments

Lighting contractor. Powell St. Station is in the middle of a major relamping project. I asked.

Why always assume it's an employee? BART has just as many contractors as employees, and pays them A LOT more.