At 5 years old and a month removed from a heart transplant, Tim Grobart's days are filled with running around the house, building Legos or playfully battling his 8-year-old brother, Lou, with plastic light sabers and toy guns.A week after Tim left the hospital, his father says the childhood chaos and sibling warfare waging at the family's Lomard home is "blissful" compared with the past couple ...
