Stun guns are devices that emit an electric shock upon contact with an attacker. When the trigger mechanism of a stun gun is pressed, electricity passes between two metal prongs which supposedly incapacitate the attacker by disrupting the neuromuscular system. The electrical spark between the prongs is visible and makes a distinctive crackling noise.
In theory this sounds like a great self-defense weapon as it provides a visual deterrence and if used it may cause the attacker to become incapacitated.
However, theory and reality are two very different things.
Here are 5 reasons why stun guns may not be as effective as self defense weapons as you may think.