The fog closed in. The fuel warning-light flashed. Mum peered through the windscreen.There's petrol station soon, just after we take the first exit at the next roundabout, said Mum. But the engine slowed down. The car jerked,Stopped. If it wasn't toggy we could see the roundabout and the petrol station from here, said Mum. There's an empty can in the boot. I'll go. You wait here. Iwon't be long