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.
Why stand and wait for the perp to take my life because I chose to spare his wasting precious seconds! If you want a warning shot, go perp the neighbor!
And I think we all know the real reason for the law!