Additionally, no one here would be able to answer your question without knowing what state or country you live in. The recording and wiretapping laws are different from state to state with some requiring only one party being recorded giving consent and some requiring that all parties being recorded giving consent. Some states also make distinctions between recording an electronic conversation, i.e., a telephone conversation, versus a face-to-face oral conversation, in that consent is required in the former while only advisement is required in the latter. Some states not only take expectation of privacy into consideration, but take the additional expectation of non-interception as well. If you would like to research this subject further yourself, feel free to check out The Reporters Committee for Freedom of the Press: Can We Tape?

Once you understand where your legal boundaries lie, consider Dan_Mcl’s argument to its appropriateness.