Stuart:  You guys finally chip in for a bodyguard ?
Leonard Hofstadter: Uh , no . Oh , this is Zack ; he 's ... a friend of ours . Zack , this is Stuart ; he owns the store .
Zack: Wow ! Lucky you .
Stuart: Yeah ! I work seventy hours a week and average a dollar _ sixty - five _ an hour .
Zack: Sweet !
Stuart: Is that sarcasm ?
Howard Wolowitz: Uh , no , it 's an indictment of the American education system ,