Emergency lighting- I work in a windowless enclosed section of a windowless building. Since we have to wear neck lanyard ID I keep a photon light on my lanyard which is light enough to fight my way back to my EDC bag where the maglite lives.

On the occasion of a facility power failure accompanied by emergency lighting failure, after management obtained a few flashlights and placed them along the hallways they thought it would be ok to order everyone back to work in the dark(at their dead computers) because the phones still worked. My objections weren't heard until I suggested we call the Fire Marshall's office and ask their opinion. (I'm not popular here)

On another occasion a co-worker noticed that Facilities had stacked building materials against an exit door on one hallway of the enclosed section making that exit blocked and unusable. My coworker and I moved the junk. Then I called Safety who talked to Facilities who promised to not do that again. When I asked Safety about posting 'EXIT - DO NOT BLOCK' signs I was told that was not necessary.
I ordered the signs and my own expense and glued them to the doors (a little crooked). Take that!
(I'm not popular here.)

On another occasion Facilities started removing the tiles and aluminum angle supports from a false ceiling right at the intersection of two dead-end hallways. They didn't setup an exclusion zone, they weren't wearing their own protective gear, and employees and managers were grinning as they dodged their way thru the work area where people could drop stuff on their heads or stick them in the eye from stuff being handled up on the ladders.
I called the Safety people - who took 5 hrs to respond and immediately shut down the work.
(Did I mention I'm not popular here?)

Rule #1- YOU ARE ON YOUR OWN AT WORK! The company may make nice noises sometimes but they have insurance to handle your injuries...... whether they realize it or not they ARE trying to hurt you!