I have been coming in on weekends to do preventive maintenance that we do not have time for during the week and I am not getting paid for it but I cannot stand watching equipment deteriorate.
More people experience this than they realize.
You can't stand watching the equipment fall apart, so you fix it for free on your own time.
“Where Are You with Trades — Industrial Maintenance & Repair?”
If this sounds familiar, the Library can help you find the bigger picture.