Vaughn Smith, an investment banker, was leading a regular life until his recent trip to a casino in Atlantic City, where he won $50,000 playing Keno. Now, he regularly visits casinos to play a variety of games and often ends up neglecting his familial and professional duties on account of his obsession with games of chance. Despite the fact that he loses thousands of dollars, he is unable to win over his drive to visit casinos on a regular basis. Vaughn Smith is most likely to be suffering from .