Except you are a light-weight sleeper and determine to camp out subsequent to the entrance door, the slight crinkle of foil will in all probability go unnoticed. Whereas it could appear loud whereas utilizing it within the kitchen, foil round your doorknob could be much less efficient than an alarm system and even hanging bells across the knob.
Not solely is aluminum foil not a superb alarm, but when somebody with malicious intent has heard of this hack, wrapping your doorknob in foil may sign that you just’re alone and appeal to their consideration. This may make your property stand out from the others round you, letting potential burglars know that you just’re by your self and afraid. Then again, placing up a safety digicam, even a doorbell digicam, is extra of a menace to thieves, and your door is extra prone to be averted. Whereas foil is cheap, it isn’t value losing it on this fictitious security hack.