out-of-hours floor work 5

https://touch-wiki.win/index.php/When_Gaps_Appear:_A_Practical_Guide_to_Floor_Gap_Repair_for_Wood_Floors

Out-of-hours floor work usually means you're cleaning or maintaining an office building when everyone else has gone home. You push a wide mop down empty hallways, the only sound being the squeak of rubber soles on linoleum. You empty bins of cold coffee and scrunched-up paper, and sometimes you find a forgotten phone charger or someone's lunch. The lights are on timers, so you have to move fast to avoid being left in the dark.