In regard to that, I have chaired committees before, and there are times when you need a minute to preface your question, but the answer requires only 15 seconds. When you see a witness not doing that, then you have the right to interrupt and say, okay, I need to ask...because you have only five minutes. It is my only time throughout the next six weeks to ask these questions, so if I feel that the witness either isn't answering the question or has answered it and I want to move on, then I have the right to interrupt.
Rules of thumb are great, but the reality is that it is not a functioning actual standing order within the committees in that regard. It is my time. If I decide to interrupt, I'd expect the chair to respect that and to respect my maturity. The reason I'm interrupting has very important context in terms of what I'm trying to do to get information for this committee. By interrupting, you've broken the flow of my questions. You've taken away my time and my ability to actually get to the bottom of some serious questions for this panel, because of how you did it.
I appreciate the rule of thumb, but in this case I think it was totally inappropriate.