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by anfractuosity 146 days ago
You can apparently lock shopping trolleys using the same kind of principle - https://www.tmplab.org/2008/06/18/consumer-b-gone/

And https://www.youtube.com/watch?v=LmSyb0kBvGE
1 comments
axus 146 days ago
He kind of buried the lede, there's another MP3 to unlock them.
link