Where there is a Will

To err is human

I noticed recently that I say ‘err’ or ‘umm’ a lot when asked a question, particularly for questions that aren't factual in nature, and have no right or wrong answer. For instance, if I were asked “what is the capital of Turkmenistan” I would answer “Ashgabat” (which everyone knows) without any umming or erring. But if I were asked “would you like milk in your Americano?” I would answer “err… yes”.