That’s the problem: “if they don’t see you first”!
The rascals are SO observant, if they see a door or window open, they’re gone. I read about one guy who got so frustrated with a groundhog diving in its hole every time he opened the screen door, he finally just shot it through the screen!
I’ve been lucky many times over the years. If their backside is to the house and I don’t make any noise I could crack open the slider and it’s a pretty big target anywhere from 40-70 feet, and you have to hit the first shot and repeat quickly with the other 4.