Idiots with guns

Long story short:

• Guns being sold at auction
• Unsupervised child puts a shell in a 10-gauge shotgun
• Aforementioned Idiot picks up aforementioned 10-gauge
• Idiot doesn't follow the 4 rules of firearm safety
• Idiot shoots two other people
• No one is seriously injured

http://xavierthoughts.blogspot.com/ has many more examples of "Idiots with guns". From that site:

The purpose of Idiots with Guns is not to humiliate, but to educate. Over the years we have seen photos of people who, upon picking up a gun, just cannot resist pointing it at something they should not, with their finger on the trigger. This is usually the camera, another person, or themselves.

The Four Rules:

1. All firearms are loaded
2. Never let the muzzle of a firearm point at anything you are not willing to destroy
3. Keep your finger off the trigger unless your sights are on the target
4. Be sure of your target and what is behind it