In the case of a car there is a level of due diligence. It usually ends with the buyer coming back with a license plate after the sale and he drives away. To get that plate he will have to have a driver's permit and insurance. That's where due diligence begins and ends. If I sell a firearm to a properly licensed individual and he ends up killing someone, it won't feel good but when the police investigate hopefully they will conclude I followed due diligence with respect to a firearm. At that point, the State, who continues to allow a disturbed individual to retain a PAL is responsible. There are some here who argue that they needn't even call the CFC to verify the validity of a license. This is where I suggest they will end up in a world of hurt.
Notwithstanding that you and I agree that a firearm is a tool - for the 90% of Canadians out there who either fear guns or are indifferent to them, if you use the tool argument, especially after a spectacular shooting incident, you will be the one looking like a tool.
What I have been trying to say for a while now is there may be some serious unintended consequences of the negative sort if we don't analyze and work this thing out thoughtfully at this juncture. I think there are some good ideas, bad ideas and really bad ideas floating around. Without resorting to bravado and name calling, let's get some legal advice and starting working out the details.