Stun guns are popular non-lethal weapons used for self-defense. They work by discharging a high voltage charge that shocks attackers and disables them for a few minutes. The voltage generated by a stun gun disrupts the normal electrical impulses that your brain uses to communicate with different body parts. However, these handy devices are designed to deliver low amperage. This induces less damage to the invader’s body – stun guns are designed to paralyze assailants for a short period, not to kill them.