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Only Child Syndrome (OCS) - a condition affecting strictly sibling-less children which is primarily characterized by an extreme self-absorbance, the inability to acknowledge the needs or wants of others, and a general disregard for all matters not concerning oneself. While symptoms may appear to be merely annoying nuisances to observers, if left untreated, the persistent and pervasive effects of OCS symptoms can severely interfere with one's ability to mature into a functional member of society. Those suffering with OCS often exhibit signs from an early age. They insist on vocabulary such as "my" or "mine" in conversation, show an extreme sense of possession, and demonstrate a general ignorance of social standards and expectations.
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