When I flew in Canada we had dozens of Chinese students. They were always getting lost, and making other silly errors that would shock you.
I remember once, a guy doing solo touch and go's and calling mayday on downwind after one of his touches.
He lost the engine. On landing we went out to see half a prop missing, which he had lost on his previous circuit touch and go! Not being bad but these guys are dangerous. As are having a GPS in the cockpit when you don't know how to use it such as this video demonstrates.