How is owning a pet different from owning a slave?

Were there good slaveowners? Am I wrong to force my cat to stay inside? I think she loves me, but kidnapping victims sometimes fall in love with the people who kidnapped them.
Update: Slavery defenders gave examples of slaves living and working with the family and never running away. Slavery was still wrong. I would never give my cat a radical hysterectomy without her consent.
14 answers 14