Originally Posted by Amputate Your Head

Why not simply allow businesses the option of installing long titanium spikes within the floor, that can be activated by a switch in the event of a robbery.

Step 1. Robbers come in.
Step 2. Robbers bust out some guns.
Step 3. Hit the switch.
Step 4. 48" long spikes spaced evenly apart at 2" come thrusting up from the floor in the blink of an eye, instantly killing robbers.

Smooth. Efficient. Foolproof.

I mean, if we're talking about issuing a license to kill in the name of "protection", then that would certainly do the job much better than a gun in my opinion. Probably even get a discount on their insurance. Like installing an alarm system.