Yes, I have seen two people concentrate and bend spoons (not part of any show). I knew a man who was dying from AIDS and believed that he would get well, and he did. I saw the before and after medical reports--Positive for AIDS and then he tested negative--(he tested again several times for people who did not believe it).
I don't believe any of the so-called "Supernatural" things that happen are actually supernatural. I believe there are things entirely within our power that we haven't even begun to grasp. When a person who is on his death-bed is suddenly & "miraculously" healed--I don't believe it's supernatural. I believe that ability exists in all of us--I just believe that a few people now and then actually "connect" with it and are able to "manifest" it. But because we rarely see something like that happen and don't understand it, we call it "Supernatural" or a "miracle." I believe the mind & emotions are much more powerful than the body.
I think you could bend spoons. I believe there are certain "laws" we have created in this reality, but because I believe it's all an illusion, and I also believe we are also capable of "manipulating" those laws when we grasp the illusion. Just like in the Matrix--they all obviously have lesser or more advanced "capabilities" when they enter the Matrix, and only "the one" (as they say) has fully evolved & can basically do anything. (A comparison to a Jesus or Buddha character). I don't believe there are a lot of extremely evolved people on this planet right now. We wouldn't have the wars & the things going on at the moment if there were.
I don't know why people fail those tests under controlled situations, but I do believe that they would never submit themselves to those tests in the first place if they hadn't been honestly capable of doing some things & believed they could still do so in a test. (Who would humiliate himself like that?) I know a woman psychic that I talk to regularly who lives in Colorado, while I live in North Carolina. I can tell her somebody's name (somebody she's never met), and based on the name, she can tell me all about that person's personality, problems--intimate, detailed information that she has no way of knowing. (There's no way I can doubt her--she's done it over and over and over--amazing things that she couldn't possibly know). But--if I were to ask her what color shirt the person is wearing at the moment, she could not tell me. And I know if she were being tested under controlled conditions, and shirt color, etc. was the type of questions being asked, she would fail. Her ability has to do with being able to pick up a person's (or animals) "vibrations"--(which is what all psychic people do), but there are some very practical things they can't pick up. I had a cat that was very depressed one time, and I asked her about it. (I gave her no information other than the cat's name). She told me that my cat was grieving for another cat that had just died. (Which was true--I had an older cat that had just been put to sleep). But--she could not have told me what I feed my cat for dinner if I asked. I think people fail those tests because of the nature of the tests and lack of understanding about what a psychic is actually picking up on, etc.& how it works.