Is it all in the past...

When does the past actually become the past and forgotten about completely?

I had a long long chat with Miss Faux Fur tonight and we discussed a lot of topics not least both our pasts. She's had a few run ins with hers lately and both times it's been positive and I can see it's made her happy. In my case it was that there is a potential for the past to catch up with me. This wouldn't be a bad thing as such but it's not something I ever thought I'd deal with again and in the event of this past just 'turning up' in the same place would be just the worst as I don't think in either case it would be comfortable. Talk about a shock value...we'd have one right there.

So our question was, do I pre-empt this one or do I just take a chance? By pre-empting it, it may be a bit stressful wondering of the consequence and whether my 'past' would think it's strange but chancing it could lead to awkwardness and down right shock for both parties (not fun). 

Can I not just sit really still and close my eyes?

What to do, pre-empt the past or let the past catch up with me?