If I clean my gun (tool) while it's loaded (stupid idea) and it goes off, who's to blame? The 'stupid user causing the problem', right? I personally wouldn't blame the gun...

If it falls into the wrong person's hands, it's STILL my responsibility as the owner.

If you're not going to take time to learn to use and be responsible with the super sophisticated and all-powerful tools, don't play with them. I'm not arguing for the death penalty every time someone makes a mistake, but I think it's very important to accredit responsibility and blame correctly. We've learned these tools are potentially as dangerous as a loaded gun. Be responsible.