It is hilarious sometimes when watching film. I saw one the other day where they were using C4 (I’m sure it was just clay meant to look like it) and they jam a blasting cap into the C4 and wire it to a timer. They walk up to the thing to think about how to defuse it, when there are literally only 2 wires running from the cap to the timer. It is possible to make a circuit that would detect if those wires were being cut and potentially go off just before that, but there’s no way to detect whether the cap is in the Play-Doh or not with only 2 wires. However, there are absolutely bombs like the one a guy made that fooled the FBI and they still use a mock up of it to train people. I’ll see if I can find a link to a good video about it.
Edit: [Qxir video ](https://youtu.be/kGo959uECTM)
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