In general, Frederick Douglass believed that it was far easier to be a city slave than a slave on a plantation:
A city slave is almost a freeman, compared with a slave on the plantation. He is much better fed and clothed, and enjoys privileges altogether unknown on the plantation.
Douglass asserted that city slaves had better food and clothing and more freedoms than country slaves had. He explained that city life gave slave masters a "vestige of decency" and a "sense of shame" that prevented slave owners from "outbreaks of atrocious cruelty so commonly enacted upon the plantation." Baltimore's slave owners, generally, did not want to be known for cruelty. He admitted, however, that there were exceptions to this. He gave examples of some cruel slave masters in the city, such as Mr. and Mrs. Hamilton. Douglass described their slave, Mary:
The head, neck, and shoulders of Mary were literally cut to pieces. I have frequently felt her head, and found it nearly covered with festering sores, caused by the lash of her cruel mistress.
This graphic description further convinces readers that slavery, on the whole, is wicked. It does not matter where slavery takes place (city or country) or how much food or clothing is given to the slave; slavery is always wrong.
Douglass experienced less physical struggle while living in Baltimore. However, he did eventually leave. After Captain Anthony died, without a will, Douglass was summoned to Captain Anthony and Mrs. Lucretia (the captain's children). He had to be valued, since he was legally considered part of Captain Anthony's property.
Here again my feelings rose up in detestation of slavery. I had now a new conception of my degraded condition. Prior to this, I had become, if not insensible to my lot, at least partly so.
While living in Baltimore gave Douglass an imagined sense of freedom, returning to the country reminded him of his restraints. He was still considered another man's property, even after his time in Baltimore.