How about......
Knicker elastic sabotage..so you buy cheap underwear, obviously sl*tty ones, e.g. see through or crotchless or perhaps with a slogan on the front like "BBC owned" or a Spades logo...whatever. You cut the elastic so that it will fail with a bit of pressure, then you go to a cultural event. You choose a moment when you are visible to most and your sl*tty knickers fall down around your ankles.
Possibilities?
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