Notwithstanding anything to the contrary in this definition, the purchase (includ ing by any electronic or  other means) of a Prohibited Substance  or Prohibited Method  constitutes Possession  by the Person  who makes the purchase.80  80  [Comment to Possession : Under this definition, anabolic steroids found in an Athlete's  car would constitute a violation unless the Athlete establishes that someone else used the car; in that event, FIL must establish that, even though the Athlete did not have exclusive control over the car, the Athlete knew about the anabolic steroids and i ntended to have control o ver them.