I'm coming to realize that trusting is the only insurance/protection we actually have in this world. Whatever idea you hold about someone or something, they or it will always rise to the level of that conviction - eventually. It may not happen immediately, but I think people, situations, stuff, will move and shift to reflect whatever your inner landscape is. I think everyone has the ability to pull up and bring out certain qualities in people and scenarios. In that vein then, your trust in the world would bring about people and situations that can be trusted; additionally, untrustworthy people or situations currently in your life will either fall away from you naturally and perfectly or they will transform and be recast to mirror your optimistic picture of them.
For some, this may not be a popular idea as it put the onus on us as individuals for the experiences we have in our lives. And many times I think people would rather point the finger and blame other people or outside circumstances. Yeah, I've felt that, been down that road - and believe me, there is all manner of "logical" proof to support that mindset. Screw that. It's never worked for me, and it feels very powerless. As Carl Jung said, “Until you make the unconscious conscious, it will direct your life and you will call it fate."
"Trust men and they will be true to you; treat them greatly, and they will show themselves great." - Ralph Waldo Emerson