Mumbai: It is one of the biggest nightmares of the suburban commuter! A stone coming out of nowhere and hitting himher while shehe is standing on the train doorstep or sitting on the much-coveted window seat, and cracking open hisher skull or plucking out hisher eye. School boy who was travelling in the train was injured in stone-pelting. He approached authorities but there was no response.Of the ample of cases of stone-pelting, just about one or two are ever solved because there are no pro-active steps taken by the authorities to put an end on stone-pelting menace.