A fun way

Introductory lecture at a technical college. The professor said:
- To begin, I'll tell you who is an engineer. So, imagine a factory, where every day brought the car to those of alcohol. needs. It should be a huge tank where alcohol is poured. Around the tank is sitting uchetchitsa which produces alcohol is strictly invoice (from the tank has a faucet). In the evening, the remnants of alcohol blend through the same tap. I put the question: how to steal alcohol from the factory?
Stunned students begin to put forward the version.
- And now the answer, - says Professor - engineers have put into the tank bucket. As a result, the bucket is filled, when in the morning filled the tank, and after the alcohol blended and uchёtchitsa left, pulls the bucket and drank. And now we learn from the engineers.




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