. . "Leopold is a construct Sheldon creates as part of an exquisitely convoluted, \"un-unravelable\" web designed to replace a ruse concocted by Leonard that Sheldon deems laughably transparent. After Leonard deceitfully told Penny that he couldn't come to her performance in a one night showcase production of Rent (musical) because Sheldon and him were attending a symposium on molecular positronium given by Dr. Emil Farman-Farmaian, Sheldon conceives a new lie in which he tells Penny that Leonard was untruthful because he wants to protect Sheldon from the embarrassment of having a drug addled cousin \"Leopold\" and that they are actually going to participate in Leopold\u2019s drug intervention in Long Beach, California to convince him to return to rehab."@en . "Male"@en . . . . . . . . . . . . . . "Leopold is a construct Sheldon creates as part of an exquisitely convoluted, \"un-unravelable\" web designed to replace a ruse concocted by Leonard that Sheldon deems laughably transparent. After Leonard deceitfully told Penny that he couldn't come to her performance in a one night showcase production of Rent (musical) because Sheldon and him were attending a symposium on molecular positronium given by Dr. Emil Farman-Farmaian, Sheldon conceives a new lie in which he tells Penny that Leonard was untruthful because he wants to protect Sheldon from the embarrassment of having a drug addled cousin \"Leopold\" and that they are actually going to participate in Leopold\u2019s drug intervention in Long Beach, California to convince him to return to rehab. Believing the success or failure of their deceitful enterprise turns on details, Sheldon creates for Leo a Facebook page, an online blog depicting his descent into drug use, and a desperate yet hopeful listing on eharmony.com. According to the character profile Sheldon wrote for him, Leopold Houston is 26 years old and originally from Denton, Texas, but was a Navy brat, so he was brought up on a variety of military bases around the world - as a result he's often felt like an outsider, never really fitting in, which is probably the reason for his substance abuse problem. As the quintessential middle child, Leo's addiction is meant by Sheldon to be rooted in his unmet need for attention, along with a genetic predisposition to inadequate serotonin production."@en . . . "Toby Loobenfeld"@en . . . "Toby Loobenfeld"@en . . "Research Assistant"@en . . . . . .