You probably got a chuckle out of the two kids who sued McDonald’s last year for causing their obesity. How could a restaurant be liable for the propensity of its patrons to over-indulge, eschew proper physical exercise, or have a genetic predisposition to create excessive body fat? After all, a Big Mac, Cinnabon, Chicago-style pizza, or Häagen-Dazs sundae can be a harmless indulgence in an otherwise healthy diet, right?
Not according to a growing number of trial lawyers, flush with their multi-b…