It really does, er... can, work. When I was in construction, I had to work up high (on beams, not drugs). The only problem was that I was afraid of heights. Well, not paralyzed by them, just uncomfortable. Anyway, every night I would have the same dream. I was working on the edge of a 200 ft cofferdam section, and I would fall just enough so that I was hanging on by my fingertips. You get the picture, and the nightmare. Naturally, the last thing that happened was that my fingers would slip --and then I'd wake up ... sweaty and unready for work. I don't recall how I found out about lucid dreaming; but, for whatever reason, I decided to try to take control. I knew that the dream was coming, anyway. So, the next time the dream happened, I tried not to let go. In fact, I tried to make sure I didn't slip in the first place. Surprisingly, it worked. In a few days, I began to mess around with it. I'd deliberately fall and hold on like before. Only this time I'd let go with one hand and turn around to admire the view. Then, like Neo in the Matrix, I'd use one hand to launch myself back up onto the ledge.
Okay, probably the more important aspect of the story is that I suddenly became more confident and comfortable on the job. I believe that the dream was a reflection of my lack of confidence --that I couldn't show on the job. The boss says "Go out there and ...." and if you don't/can't, you lose your job. I was competing with Norwegians and Mohawks, too (though I stood and still stand in awe of some of them). Now, I still don't like heights. I'll hire someone before I'll mess around on a two-story gable. But, I am pretty sure I could if I had to.
Btw, one of my partners was Owen Quinn, who some say invented base jumping (cause he was the first to jump off the Twin Towers. There was a big layoff that year, and for some reason he dreamt up the idea to go up one of the unfinished towers, dressed in his work gear, and take the jump. I'm sure he visualized it and dreamt about it. Owen was the guy who sent me to find a left-handed wrench and a sky hook. Anywho, apologies for derailing the thread. Here's a pic; call it flying.
"A man is rich when he has time and freewill. How he chooses to invest both will determine the return on his investment."