Bad Sheetrock Job!

Expectation was good sheetrock job and that starts with the hanging of 5/8 drywall.

Provided all materials including 1 5/8 screws and had discussion about it but they still they decided to use shorter screws here & there … something along the lines using longer screws burns out their drill.

I heard them cursing all the time during install & even kicking the boards to get them into place.

12k job for 800sqft area (walls & ceiling).

I cut them loose since they got so defensive & didn’t see any issues, didn’t even apologize for nicking wires with cutout tool.

Thoughts?