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- A magical sensor, which detects gender, activates a spring-loaded mechanism in order to sound an alarm.
- A visual sensor at the entrance activates a biological mechanism in order to put a character in jeopardy.
- A magical sensor, which detects hostile intent, activates a chemical mechanism in order to drain a character resource.
- A guard in/on a container activates a arbitrary mechanism in order to paralyze the victim.
- Light activates a arbitrary mechanism in order to slow the victim down.