#appropriator  someone who takes for his or her own use (especially without permission)
  supertype:  acquirer  a person who acquires something (usually permanently)
  subtype:  kleptomaniac  someone with an irrational urge to steal in the absence of an economic motive
  subtype:  poacher  someone who hunts or fishes illegally on the property of another
  subtype:  pre-emptor__preemptor__preemptor  someone who acquires land by preemption

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