Throwing out Netflix person?

Suppose you gave someone the Netflix password and that person watches movies etc. Then you can throw the person out again

Change password, then he has to enter it again.

I think if you change the password the person should be kicked out or not?

Yes you can specify in the settings that everyone has to log in again, before changing password and problem solved brother

Devices logged in go to the account, display unwanted devices, then change password, done.

That's how you do it. Say no to Schnorrer!