Interesting in a similar way is the article "How To Make Your Own Luck".

We asked subjects to flip through a news-paper that had photographs in it. All they had to do was count the number of photographs. That's it. Luck wasn't on their minds, just some silly task. They'd go through, and after about three pages, there'd be a massive half-page advert saying, STOP COUNTING. THERE ARE 43 PHOTOGRAPHS IN THIS NEWSPAPER. It was next to a photo, so we knew they were looking at that area. A few pages later, there was another massive advert -- I mean, we're talking big -- that said, STOP COUNTING. TELL THE EXPERIMENTER YOU'VE SEEN THIS AND WIN 150 POUNDS [about $235].

For the most part, the unlucky would just flip past these things. Lucky people would flip through and laugh and say, "There are 43 photos. That's what it says. Do you want me to bother counting?" We'd say, "Yeah, carry on." They'd flip some more and say, "Do I get my 150 pounds?" Most of the unlucky people didn't notice.