When it happens, it's tragic. However the incidences of this is miniscule and doesn't warrant what the anti-gun lobby is doing, THAT is the problem. They will still gripe about the INTENTIONAL shootings, and eventually voila, we will have no more guns (except the criminals and the government... same difference...) and your invention will be moot.
I just wonder how many "accidental shootings" occurred when guns were easily accessible to all, several decades ago...