Mamas, Don’t Let Your Babies Grow Up To Be Terrorists

Riddle: A retired couple had just completed construction on a brand new house. The husband had worked in construction, and his wife had been an interior decorator, so the finished house looked great. They were so proud of their new house, they invited their 12 grandchildren over to see it. Within an hour of their visit, however, the 12 children had broken several windows, pulled decorations from the walls, smashed parts of the white fence surrounding the house, and somehow even managed to destroy parts of the new roof. Shockingly, the retired couple did not try to set any behavioral limits on their grandchildren, and in fact, were observed smiling and laughing as their grandchildren inflicted damage on the house the couple had so carefully created together. Has the world gone mad? What kind of insanity was going on here?