Why waste a waste a round? Watch some idiot now come up with you now have to count to 10 before the next round can be fired.
Why start with the premise that you need take a life just because you can - even if you might not have to?
Once again, the point being missed about the Florida law - it is designed to remove the mandatory 10-20 year imprisonment of those who opt to fire a warning shot. It broadens the options of those who choose to be armed to defend themselves.