`` i am sure if i go , the tea will be very unpleasant , at least my tea will be , and i will have to drink it or look ill-mannered ; or she will make remarks which do not seem offensive , until i have gone away and thought them over ; or she will try and have you murdered while i am not there : you are not to go anywhere without a guard , and if anyone tries to murder you , you must call for me very loud , '' he added .