This'd qualify as a grade-A parental nightmare

The kids don't come home on the school bus, because the driver takes them all away:

Paul Merriman said his two children, aged seven and 11, told him the bus didn't follow its normal route, but instead meandered through neighbourhoods and then hit a parked car at a shopping mall.

The school bus continued moving until the driver was forced to pull over by the drivers of two other school buses who blocked her path.

"They thought it was just kind of a joke at the time, that the bus driver was taking a different route or something. And then the bus driver was, from what the kids tell me, was very unresponsive," he said.