Students always hit the toilets in the universe
Three cabins
one is occupied by a cleaner (on the toilet stands a barrel barrel - type there only she has the right to pour water)
In the second there is no sling and a steep toilet, so to solve the need for the problem, it is necessary to break all there.
One cabin works normally, but with such a triple load in it for some reason it is always bad.

Now a similar picture is seen in shops of type "all by 38";
Three boxes
One does not work, but there is a cashier (for the furniture what?) and sends everyone to another box (the analogy with the tank immediately arose), the second is empty (cossy toilet, eh?It works alone, but due to the triple load.

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