Dr. Sara Tancredi:  You got ta know it 's not real hard for me to recognize a junkie . I - I ... I 'm saying , you do n't look so good .
FBI Special Agent Alexander Mahone: I 'm fine .
Dr. Sara Tancredi: You mind me asking what you 're taking ?
FBI Special Agent Alexander Mahone: Here , you want _ one _ ?
Dr. Sara Tancredi: No , that 's okay ...
FBI Special Agent Alexander Mahone: Save it for later .
Dr. Sara Tancredi: Benzodiazepine 's a hardcore tranquillizer , man . You take these everyday ?
FBI Special Agent Alexander Mahone: Twenty milligrams .
Dr. Sara Tancredi: You must feel like you 're walking under water .
FBI Special Agent Alexander Mahone: I do . It 's very quiet down here .
Dr. Sara Tancredi: That 's why you started , right ? Peace and quiet ? It 's not why you do it any more though , it is ? I know it 's the headaches , right ? And you probably do n't sleep . And you know you 're gon na destroy yourself , right ?
FBI Special Agent Alexander Mahone: I had n't ruled that out as a possibility .