I'm very apprehensive about returning to something which gave me such distress both before and after I left, but I'm afraid I do miss it, and I have received so many supportive messages and sensible advice that it would be very churlish of me not to at least give it a try.
But I will need to tape the "Serenity Prayer" to my computer screen, with an essential amendment:
"Grant me the serenity to accept the things I cannot change ..."(or at least the courage to ignore them).
And while I'm waiting for a decision on my request for reinstatement, I think I'll watch one of my favourite movies, which gave "serenity" a whole new meaning. :-)
[Added: ODP management decided it was OK to have me back. Things will certainly not be the same, but that is a Good Thing.]