Shooting the Spray
There's much more to using a defense spray than just pointing and shooting. Remember, don't raise, point, and shoot the spray until you're ready to fire, until the assailant is in range and you know the spray will hit him full in the face and incapacitate him. The objective is to surprise and stop him before he has a chance to react or think. When you're ready to shoot the spray, go into a slight crouch with your weight evenly balanced on both feet, if you have the chance. Thrust your non-shooting hand straight out in front of you. At the same time shout "STOP" as loud as you can. As you're doing this, raise your hand holding the spray to eye level, approximately six inches in front of your chin, aim over your outstretched arm and hand, and shoot at the assailant's face.
Shouting "STOP" creates a slight diversion, but more importantly, it focuses your energy. Raising your arm outstretched toward the assailant may cause his immediate attention to be focused on that hand, not the one with the spray. This gives you time to bring the pepper spray to bear and shoot before the assailant can react. Never thrust your shooting hand out in front of you toward the assailant. He may react quickly and hit your hand aside or grab it, as you shoot, back up, continuing to do so until the spray has affected the assailant.
Most sprays emit a wide enough pattern so that they don't require precise aiming. However, if you need to make an adjustment, do it calmly but quickly. Don't wave the spray around like a fire hose. That does nothing but waste the spray, causing much of it to hit empty air. Aim, shoot, see where you're hitting and, if need be, correct your aim quickly while spraying. You should shoot the spray for 2 to 3 seconds. A good, solid medium duration spray around the head and shoulders should do it. After shooting, the assailant will normally stop within a second or two, blinded and virtually helpless due to uncontrollable coughing spasms. Once he's disabled, stop spraying. Continue backing up and concentrate on getting away. Obviously you may not have time to shoot the spray in such a "textbook" way. You may not have time to do anything but bring the spray up and start shooting. If that's the case, don't worry about aiming correctly, or even correcting aim. JUST SHOOT!