What is wrap foil around door knob when alone?

Wrapping foil around a door knob when alone is a common safety tip, especially for people who live alone or feel unsafe in their surroundings. The foil mutes the sound of the knob turning, which can make it harder for intruders to detect if someone is inside. Additionally, it can make it more difficult for someone to pick the lock. However, it is important to note that wrapping foil around a door knob is not a foolproof method and should not replace other safety measures, such as installing proper locks and security systems. It is also important to keep in mind that it is not a reliable measure against all types of intruders, such as those who may be able to break down the door.