Slaves are people who are owned by higher class people. Demanded to do what ever is asked of then when and where they are asked. If refused the slaves would be beaten and somehow tortured.They were told to do things. If these things weren't done they where whip and treated with no respect.
"This produced copious perspiration, so that the air soon became unfit for respiration from a variety of loathsome smells, and brought on a sickness amongst the slaves, of which many died." -Olaudah Equiano: Life on Board