Kids may be safest in cars driven by grandma or grandpa instead of mom or dad, according to study results that even made the researchers do a double-take.

Source/more: USA Today/Associated Press (July 18, 2011)

 "Grandparents, when they have the opportunity to interact with their grandchildren find that to be the primary focus of their time together," he says. "They're perhaps not as distracted by trying to do a million errands, or get the dinner on the table, or wonder about their response to the latest e-mail.

"Speaking as a grandparent, about the worst thing that could happen is one of your grandchildren getting hurt on your watch, and trying to communicate that to your children," Henretig says.