When I turn someone I am guaranteeing as my protectorate, I end up spending extra influence, so I revoke guarantee - which in turn hurts my relations with them. When I turn someone I am NOT guaranteeing into protectorate, guaranteeing option is greyed out. I would assume protectorate comes WITH guaranteeing, so I wouldn't have to spend extra influence. So, is this a bug? Turning empires into protectorates should automatically eliminate guarantee without any negative penalty.