Okay, I taught in a rather questionable area and a lot of my students would go home to houses and were alone until the parents came home. Some of the kids were afraid when the doorbell rang by a stranger and would hide and be very quiet. I told them to go to the inside of the front door and yell as loud as they could "Mom, Mom, there is a stranger at the door!!!!" Okay MOM, I won't open it!!!!! They kids felt much safer after that because if it was someone that was thinking of breaking in, they left. At least 3 of my students came and thanked me and others said it worked for them. Now, when I am home alone and the doorbell rings and I look through the peep hole, and it is a stranger, I yell as loud as I can, "Honey, there is a stranger at the door and I am not opening it!!! They leave. We live in a new world and have to think out of the box at times....