Someone watch for the accomplice coming in the back way while you are distracted. Pax Vobiscum.
That is good advice, in my case the back door is an all glass screen door.
Also in my case, call 911 normal response time at 0-dark 30, more or less 10 minutes, Orange County Sheriff Dept. on the ball.
Illuminate top of stairs, Glock 19 on bedside table is carry, take off put down, in the morning, put on weapon, spare electronic ear muffs handy, hear better when on, really better after shots fired.
An option, trigger alarm from remote, negating motion detector, my alarm is loud!
In case that message needs clarifying, NO! I would not shoot through a door.