Kippers..
...are also good for this, especially frozen ones as they have a time delay. On leaving my old job I sellotaped one under my boss's desk, and got an angry phone call a fortnight later. He'd got Rentokil in and they'd located the offending article.
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Wed 22 Oct 2003, 11:13,
archived)
We stuck....
a some milk in a small container and pushed it down the back of a blokes radiator at university. That stank to f*ck inside a few days....
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Thu 23 Oct 2003, 12:23,
archived)
Milk chicken bomb
I made one of these by putting old milk in a jar with a rotten chicken leg inside and hid it behind my "mates" boiler when its all fermented enough it explodes. he did'nt find it for a week and his girlfriend removed priviledges until it was sorted. how we laughed
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Thu 23 Oct 2003, 17:45,
archived)