In my case, I'm not so sure he was TRYING to intimidate me, though he obviously was anxious and wanted me to take the flight since he had no other options. I think he was trying to walk me down the path to either fly the flight or just say the F word, but his wording and tone came across, at the time, as accusatory and a bit intimidating. They can't really suggest the option to call fatigue to you, but once you say it, one conversation ends immediately, and another begins (ie. the new options - another flight, crew rest, etc). When telling this story to my FOs, I always emphasize NOT to be intimidated and to just use the F word, if needed, right away! Saves you from a lot of acrimonious phone conversation with the DO!

The day after I arrived in MEM, I had an email to call my ACP to talk about what happened. I contacted ALPA, they asked me some Qs (ie, my side of story, trip history to that point, did I say anything I might regret, etc), they contacted my ACP to ask for copies of the tapes (I think they're .wav files, actually), then arranged a conference call after they listened! All in all, the "debrief" was fairly painless, and my ACP found no fault and supported my decision!