Oddbean

@d4b81373 Back in like 2015-2016, my employer was running a public event at Defcon. We had most of my collection of locks there (a couple hundred). People were learning how to use a paperclip (iirc) to open handcuffs that were double-locked. At some point, a random attendee had it tight on their wrist, double-locked, and snapped off the paperclip inside. They tried to open them with a key, no luck, it just jammed things worse. They tried to shim/etc., still no luck since double-locked. Thankfully, my friend Brandon was able to work out the piece of paperclip with another tool (a lockpick or something, I don't remember what), and got the key to work. But it took like 10-15 minutes, as people higher and higher on the Google org chart were coming to see how things were going. It was incredibly stressful! These days, when I see handcuffs at an event with the public, I strongly warn people off. If you know the risk, sure. But I sure wouldn't want to send a random person to the hospital.. (I don't remember what type of cuffs they were, they're still in a box downstairs, but the downstairs is firmly under the spiders' control right now)