Researchers at Yale School of Medicine surveyed parents with kids under age 6.
They found the vast majority of kids who unbuckle themselves from the car seats-75%-are under age 3!
Some little "Houdinis" were able to free themselves as young as 12-months old. It was more common among boys than girls.
Nearly 1/2 of kids who unbuckled did so while their vehicle was in motion.
When they were in 5-point harnesses, most managed only to undo the top buckle.