Trope-a-Day: Slipping a Mickey

Slipping a Mickey: The reason why v-tag poison detectors are built into bar glasses, finger-rings, and suchlike all over the place.  Of course, given the social conditions of the happy utopian Empire, not more than one in a billion of these things ever triggers, and most of those are false positives, but still.  Trivial security enhancements are trivial.