...uh, dude, that’s not how this thing works. When the door is shut, you place the wedge part against the bottom. When the sneak their pushes the door inward, the wedge is depressed, striking the bell and also arresting the door.

Have you even seen a doorstop? The bottom of the thing is probably rubber, so it doesn’t move when the door presses against the wedge, which then provides additional pressure to hold the alarm in place.

I’m not too sure, but I wouldn’t look to us for any suggestions. We’re still trying to upgrade our military...