One of my secretaries has this uncanny ability to respond to my questions in a way that necessitates a follow-up question from me. Like, I'll ask a question (X or Y?) indicating the consequences of each answer, and she will answer the question but not indicate in any way her intention to implement the follow-through. Which means that I have to write to her again, saying "OK, so X, now will You do Z, as I suggested would be necessary if X?" It's unbelievably frustrating, as a communication tic, over a longer period of time.