re: What things in your life that you've done that probably not many others have done?

Define "not many". I shook hands with a sitting U.S. President (Gerald Ford), I've seen a space shuttle launch live from Cape Canaveral, I cleaned up nuclear fallout from Chernobyl. I've been in a submarine nuclear reactor compartment including climbing on and around the reactor (of course it was shutdown. I'm here aren't I?)