So-called psychics are well-known for using the sharpshooter fallacy. Jeanne Dixon was well-known for her "predictions" she put out every year, and she always reminded everyone that she predicted the JFK assassination (not really, she actually made a vague prediction in 1956 that an unnamed Democrat would win the 1960 election, but would either be assassinated or die in office, but not necessarily during his first term). However, the hundreds if not thousands of other predictions she ever made never came anywhere close to being true, like that the Russians would get to the moon first (hardly a tough prediction, since they were way ahead of our space program) and in 1960 she wrongly predicted that the aforementioned JFK would not win the election. But every year she continued to churn out more and more predictions, usually in the National Enquirer, which never came to pass. I specifically remember one in the 80's where she claimed that many drug kingpins would die from AIDS. I think I happened to keep that particular page from the National Enquirer for a year to see if any of them would come true, which none of them did. But yet year after year she'd appear on the Johnny Carson show and remind everyone that she predicted JFK's assassination.
Source: http://www.straightdope.com/columns/read...assination
Source: http://www.straightdope.com/columns/read...assination
Christian apologetics is the art of rolling a dog turd in sugar and selling it as a donut.