Before going to bed, a homeowner decided to test a low-cost safety idea he had read about online. He wrapped aluminum foil tightly around his front door handle, thinking it might help him notice if anyone tried to touch it during the night. It looked strange but harmless, and he convinced himself it was just an extra layer of awareness rather than real security.

As he finished adjusting the foil, he noticed how easily it crinkled with the slightest movement. He paused, wondering if something as simple as this could really make a difference. Then, just as he turned off the hallway light, he heard a faint sound from the front door that made him freeze completely