Be a Coyote, Not a Cat
Where I live, sunny Southern California, people's cats are constantly being eaten by the local wildlife (mostly coyotes). Story goes like this, new couple moves into town and brought there beautiful kitty cat named something like.. Whiskers or Snowball or Boots or some other cute name, and one week later they are putting signs up on all the telephone poles hoping someone has seen there lost cast.
The cat aint lost. It legally had its name changed to Dinner.
Cats think they are the alpha predator, and maybe from where ever they used to live, they were. But they aren't where I live; the coyotes are.
What happens is the cat wonders around, sees a mouse or lizard and gets into attack mode. Totally fixates on its new prey. Starts wigglings its behind and gets ready to strike. Unbeknownst to the cat, there is a coyote behind it doing the same thing (only better).
Short of it is, don't get so fixated on the guy you are shooting at that someone else shoots you. That kill isn't worth getting killed over. Hopefully the story helps you remember that.