<div class=”d4p-bbp-quote-title”>matt76 wrote:</div>Malgus had an idea a long time ago in a discussion with someone in South Africa about creating a funnel or using a hallway and having trap doors that would come down on either end when tripped to trap the intruder until authorities could arrive. Of course in SHTF it would just hold them until you could arrive and handle the situation as you saw fit. I will see if I can find the thread.
Doomsday Preppers had someone who installed hidden pepper spray nozzles that were activated by sensor in a hallway. A little less complicated. You could also install a speaker with a prerecorded message and video the whole thing. A couple of doors might be considered entrapment.