"My name is (name), what is yours? Nice to meet you. Am I free to go?" "Please, I do not wish to talk to you." "Please, if you want to talk to me further, I w

"My name is (name), what is yours? Nice to meet you. Am I free to go?" "Please, I do not wish to talk to you." "Please, if you want to talk to me further, I will want my lawyer present." "Please, I do not wish to participate in a fight with you." "Please, let us leave each other alone, or I will destroy you and your organization via technology beyond your understanding." (Be sure you can back this one up before using it). Be polite, be professional, speak little unless there's profit in speaking much. Works with most everyone that is outside your monkeysphere, this includes cops.