Anybody can explain me what does mean that gesture (screens from films "Shoot'Em Up" and "Black Hawk Down")? http://img195.imageshack.us/i/205814.jpg/ http://img6.imageshack.us/i/211132.jpg/
Completely it looks so: guy brings to face or eye the clenched fist with upright index finger, bends finger several times and says that "It's main safety" or "It's my safety", implys that safety more important than gun safety. What does mean that gesture?
If you've got, please, give me the source where describing origin and meaning that gesture. It doesn't matter what language it can be.
Did you see that gesture anytime in real life?