Think of your middle finger like it’s your own personnel FU sword: It’s yours to use, but there are some places you just shouldn’t stick it.

“Research shows that the middle finger plays a major role in human interactions everyday ” says Steve Kelly , Fi.D. “Due to improper middle finger use, the middle finger is rapidly becoming the number one cause of facial injury . "

​ The use of the middle finger and the proximity of yourself and the people around you are something that you have to consider. Injuries to the mouth, nose and eyes are everyday events in the flipping of the bird. These injuries can be avoided when we all make an effort to step back and think before we give the finger.