Over penetration and home defense.
Reading another thread made me wonder about this:
A simple scenario for discussion.
You are awakened in the middle of the night by your wife, " Honey, did you hear that noise???" You jump, half asleep, grab your weapon and go to investigate while your wife sits on the bed with her weapon in her hand, " Honey, you stay here and call 911 if I yell." So downstairs you go and while checking out the broken window, your wife starts screaming and you hear a shot: you run back upstairs and into the bedroom to find your wife in the far corner with a baseball wielding intruder in between you and her. Upon hearing your entrance and warning to freeze the intruder turns to attack.
Do either of you fire ??? Do you chance a miss or a thru and thru and hit your wife? Would you expect her to fire under same circumstances?