The 50-50-90 rule: Anytime you have a 50-50 chance of getting something right, there's a 90% probability you'll get it wrong.
Question #47219 posted on 09/01/2008 3:01 a.m.
Q:

Dear 100 Hour Board,

RE: Board Question #47094 - It should also be noted that the hand-over-heart motion was not the original form of saluting the flag. The original salute mirrored the Nazi salute too closely. As a result, the hand-over-heart salute became the new official salute.

http://en.wikipedia.org/wiki/Flag_salute

-wired