You are obviously not a quail hunter.
A flushed covey often spreads out and flies at shoulder level, especially the blue quail of South Texas. Some of the birds will swing around and fly behind you.
When shooting, both elbows are up and out and your cheek is down on the gunstock. Your vision is very constricted and you are rotating rapidly to keep on a bird. The trigger pull is a trained reflex that happens automatically as you swing through the bird. If someone is where they should not be, or you are disoriented and don't know they are there, they may get hit.
I have never hit anyone, but I have come close, and close to being hit. I have seen it happen. It's a normal part of quail hunting.
So9
"It's a normal part of quail hunting."
Getting shot?
Well, you sure did explain it better than I did. I was TRYING to 'splain it!