Such gymnastic exercises and begging in the natural environment vstretitnevozmozhno. All of this - invention, allowing to adapt to osobymusloviyam captivity. In the context of 'human zoo' the creative principle comes to amazing extremes. I have previously pointed out that frustration may come when the artificially concocted a struggle for stimulus from the fact that its prospects are rather limited, often begins to seem pointless. Trying to avoid this limitation, people looking for more and more complex forms of expression that have become so all-consuming, and raising the individual to such heights of knowledge that nagradamuzhe no number.