Consider a recent interaction you have had with a someone or item that you read somewhere that you thought could be called "illogical." Errors in fact, errors in terminology, and differences of opinion are not logical errors. Just because we are tempted to say that something is "illogical" does not mean that an error in logic has actually been made. Share the example as and the error$($s$)$ that you found in the example. Were they logical errors, or some other kind of error that people mistakenly call logical errors? If it was a logical error, what principles were involved?