In TV shows people are always taking the doorknob away to trap people in rooms and such…how does this not just allow the door to swing open and/or how can the trapped people not just stick their fingers in the hole to pull back the piece that goes in the wall?
In: Engineering
If they remove just the knob what renown’s is a stubby little square piece of metal, and if the spring is strong enough, it’s pretty hard to overcome with your fingers
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