Unattended computer should have an option to "end the session". also "overpower host mouse" if desired.
Adding a feature that will allow the unattended computer to "end the session" along with the host having total control would give the unattended computer customer a feeling of control. Without it all they can do is wait until the host is out, then uninstall the program.
The unattended should have some control over their computer, "end session" and "overpower host mouse" would be two that make sense.
Customer support service by UserEcho