This is attached to Hal's post for convenience only but it is intended for the benefit of all.

Rather than criticizing someone for unresponsiveness, it seems to me the better response would be to reply in kind and not respond to their questions. Over the years I have found unresponsiveness is far more likely to elicit the desire behavior than criticism. frown

If we knew what it was we were doing, it wouldn't be called research, would it?

— Albert Einstein