A police officer had to step in when the laws of motion put a baby in danger.
The officer was traveling down a Wisconsin road when he noticed a shopping cart whizzing by his cruiser.
In it was a child, and the buggy was headed straight for a busy road.
According to CBS News, the cart had rolled out of a store parking lot and the officer happened to be in the right place at the right time.
He knew he could not stop the cart, so he stopped traffic instead.
The incident was caught on dash cam.