Clever staging items

With colleagues noticed that in the mornings suspicious things happen on-site deployment of the morning! All scattered, crushed, pogryzanno. We decided to find the culprit is a bottle in which the supply water for the cooler, but with the neck cut off. Inside the water (about 5 cm). Two tubes of paper fastened by a stapler. That's all





This is the second version of the question)))



Thus it was revealed a few troublemakers be two mice, voles likely. Greenpeace us, of course, will say thank you, but the survival of the fittest.



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