I gotcha. Sorry if I came across as defensive. Accidents like this (preventable) tend to get my feathers ruffled. It makes responsible gun owners look bad. I value the Second Amendment, and this guy makes us look bad. The government is trying so hard to take our rights away, and people like him give them ammo for their cause. No pun intended.
That is why I said that I didn't know about a Glock!!! My handgun does have a safety and it will not disengage by pulling the trigger. I always have a full magazine, one in the chamber and the safety on. I practice (fully empty of course) playing with the safety on/off, so that if I should ever have to use it for fear of my life, I won't have to fumble around, it is almost like second nature. The point was that no matter what type of gun you own, you should be familar enough with it to know what it will and will not do and always be aware of where your trigger finger is at all times.
I'm not sure about a Glock, but I know that my gun won't fire if the safety is on, even if I have my finger on the trigger. I know that accidents happen, but why on earth would you try to clear your gun with your finger on the trigger? Just proves what responsible gun owners say. "Guns don't kill/hurt people, it is stupid people that kill/hurt people."