Thank you for taking the time to respond. I really appreciate it. It's been eating away at me for 12 years now.
I agree 100% that I should not try to hide the incident, or worse, lie about it if asked. I read AC 120-68G. According to the document, PRIA goes back 5 years. I'm wondering if this even will show up which puts me into another tight spot.
If they don't ask, I don't feel like I should be talking about things to give them a reason not to hire me. However, if they said, "So, what happened at your 121 job?" I would take that as my cue to spill the beans so to speak.