If you give someone the ability to make you scared,

If you give someone the ability to make you angry, 

If you give someone the ability to make you sad,

If you give someone the ability to make you worried, 

If you give someone the ability to make you doubt,

If you give someone the ability to make you jealous,

you have become their slave.

This is voluntary, and as soon as you take away their ability, you are a slave no more.