Yeah, my bad. I won't rely on others. That sounds socialist. I won't incentivize people around me. The fact that I'm armed, with a rather powerful weapon, should deter criminals. It's all about who has the "biggest gun". And mine will be F-ing huge. And I'm not hiding it, I'm just not flaunting it. Shouldn't certain death for the robber and everyone around him be a great deterrent?
I'll make sure the evidence is safe. I'm sure google can provide safe storage. And why is it me who's responsible? Not a single death would have happened if the robber had just let me be. If my car is hit by another car, causing me to spin out of control and hit a pedestrian, am I responsible for the pedestrians death? Same thing.
Deterrents only work if the people being deterred know about them. If you want to be kept safe by your vest-nuke, it had better be very obvious to all who see you that your death will mean theirs.
You need to read up on what
nukes do to electronics. Your storage would not be safe. And a car is not a retributive booby trap. A car is a device designed to get you from one place to another. If you spin out and hit a pedestrian after being struck by another vehicle, that is by definition an accident. The vehicle is not designed to spin out and strike pedestrians. Your vest is simply completing it's designed purpose when it detonates, killing anyone in the vicinity. Since the designed purpose was chosen by
you, you are at fault for the destruction your death causes.