People who break into homes usually look for the easiest targets. They avoid anything that might draw attention or complicate their entry. A shiny layer of foil on a door handle may look unusual enough to make a potential intruder pause.
Burglars know that anything out of the ordinary could mean someone inside is alert or watching. That hesitation alone can be enough to make them move on. In that sense, a bit of foil works not just as an alert—but as a subtle deterrent.
Adding Extra Layers of Protection
While the aluminum foil trick is clever, it’s best used as part of a larger home safety plan. You can strengthen its effectiveness by combining it with other simple, low-cost ideas.
Try placing a lightweight cup, bowl, or metal pot on the inside door handle at night. If the door moves even slightly, the item will fall and create a loud noise. This unexpected clatter can startle an intruder while alerting you at the same time.
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