I have a biometric for my Glock. I can't clear my house with a shotgun or any rifle, too big for comfortable clearing. Not that I have had to more then once, but I have run a few drills with the kids and wife after there was a string of burglaries in our town. No one ever got hurt in those, was just some stupid teens out for a thrill. A local cop & friend of the family, he showed us a few clearing drills at the time. We practiced so the kids would not panic if anything happened, hopefully. Anyways, yeah, the keypad thing has always worried me. As for Stack On, no, lol. I told my wife, if the house catches on fire, that will heat up and start shooting the bullets at US, lol.