I began to speculate—maybe it was some sort of security trick or a discreet way to see if anyone had come by.
Part of me felt like I was reading too much into it, but the question lingered like an unsolved puzzle.
When they returned, they stopped to thank me, and I finally asked what the foil was for, trying not to sound overly curious.
They told me it was a simple method they used to see if someone had tried to enter while they were away.
If the foil had been torn or disturbed, it would mean someone had touched the handle.
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