Jeff, thinking about your post and reading it several times, it took me a little while to understand and finally get to the place where you said you can "at least know the risks" and then make your decisions.
That's a good point and due consideration given where we've all been and why we ended up there. Or here, or over there....
For me, personally, the stuff I ended up in that took me to place(s) of lack of trust weren't without my own accountability and I accept that, even 15 years in The Way Ministry.
So, having said that and understanding your point, I agree that we can take from those experiences and carry the learning into new and hopefully better instances, circumstances and experiences and follow the 'fool me once, shame on you...' standards.
For me, it's an almost daily healthy practice to remember how much something hurt or recall how much I invested before I found the exit door. But that isn't without it's benefits too, eh?
I'm also reminded that it's not just me who has to be cautious, but to remember that I, too, have to prove myself and that should be acceptable too.
If I want others to know me, trust me, invest their emotions, perhaps.
:)