I've detailed the reasons in the past.
If you believe there are good justifications for human cages and supporting them through theft, and that it's worth the problems inherent in that sort of thing, please ignore this.
I was recently made aware of a nearby prison's main entry key being lost. In my twisted mind, the first thing I thought of was that I hoped someone could scan the key and put the 3D printer plans to copy it out there on the internet.
Then I realized that would be a wonderful thing to do with every prison key that could be surreptitiously scanned! Just imagine if every prison key in existence were available for download.
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