Rare but common
I know of very few gasoline-fueled ICE vehicles that simply burst into flame while being quietly charged up with fuel. It happens, mind you, but that is usually because of some simple precaution not being followed, like not smoking while refueling the vehicle.
Battery-powered plug-in electric vehicles seem to be much more temperamental pieces of machinery, in so many ways. Simply following the manual (as if anybody ever READS the manual) might go far in reducing these mishaps, but this new technology, man, that can be hard.
If only there were a way to generate the electric power needed to propel the vehicle right on board, as it is about to be consumed, think of the simplicity that could attach to the whole concept of electrically powered vehicles.