What do you do when the question or phrase keeps getting repeated despite you responding to it, sometimes in several different manners? We've been going with: "Answer." "Rephrase answer." "I already told you, answer!" "I already answered that, what did I say?"(ie, *I* repeat the question, and try to get them to answer it.) "Change subject."
The changing subject thing usually works, but not very well, and still... that's already like 5 or 6 repeats of the same. question.
I usually say something like, "Did you not hear me, or did you not understand me?" And then rephrase or speak more loudly as necessary, otherwise I kind of just ignore the question once I've answered it half a dozen times... I'll admit this drives me insane, much more than the constant "why...?" and "what will happen if...?" and incessant talking.