There seems to be a new addiction: Videogame addiction. See this Washington Post article that discusses gaming addiction. Amsterdam’s Smith and Jones Addiction Consultants now offers treatment for gaming addiction. Research on gaming addiction is thin at this point in time with debate on whether this is a real addiction. You can, however, bet that this problem will find it’s way into the workplace and will be raised as a defence to some employee’s discipline case.
If this is a real addiciton, and requires an accommodation, I would imagine that part of the acommodation would involve the employee staying away from computers. How would you achieve that without undue hardship in this day and age?