Washing-up liquid had been put down toilets, cellophane put across toilets seats and fish placed in the school library.
Some work like detergents, disrupting the membrane that surrounds an individual virus in the way that washing-up liquid disrupts an oily film.
Staff were soaked with water bombs, washing-up liquid was squirted into the eyes of one teacher, and the head's office was "trashed", she said.
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Staff used washing-up liquid and margarine to clean them.
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Large retailers that have cut their in-store credit costs for items such as fridges and washing machines are reporting a pick-up in sales.
British parents, stuck washing and cooking for their grown-up children, are typically less enthusiastic.
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The process of preventing such contamination requires first a thorough power-washing (which can take up to an hour) followed by an inspection of the cleaned gear (which can take considerably more than an hour, depending on the complexity of the equipment).
The next day he began a clean-up operation at his home, washing the dining room carpet and scrubbing every inch of the house with what one police officer recalled was a "lemony" cleaning fluid.
When Whirlpool set up factories to make refrigerators, air-conditioners, washing machines and microwave ovens in China in 1994, it assumed that it was racing against other foreigners.
Waking up in the morning, going grocery shopping, washing clothes and doing other day-to-day activities help create a stable, comforting environment, she said.
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Critics of the sectoral approach point out that however efficient industries might be, it does not help the climate if inventors keep dreaming up new ways to use energy - like Japan's electrically heated, stereophonic, bottom-washing toilets.
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