drop bear
Sr. Grandmaster
Who said kill? That saying doesn't mean kill. If all it costs to stop the threat is a few broken ribs then you give a few broken ribs. If all it costs is a verbal threat you make the threat. If all if cost to stop the threat to to kill the you kill. No more no less. You use the most force you need no more and no less.
I find it a little odd all these "trained" martial artists can't tell the difference between self defense and murder or assault.
it could certainly imply kill. Even you have said kill.
and hey why take the risk. I mean it is better to be judged by 12 than carried by 6.