There is air conditioning.
The department this company has the most difficulty staffing is the returns department, which has a high turnover rate.
And it only pays the basic wage.
How could it be reasonable to force the returns department into an unfair distribution of work and rest?
Personally, I think there are management problems in the returns department.
Everyone has their own responsibilities.
If you work quickly, you are told to stop what you are doing and support other areas.
If you work slowly, you receive support.
So it is still easier to get by by pretending to be clueless.