my windscreen is no longer shining..

this was caused by a small stone on the highway when i was driving only at 80 km/h yesterday.. heartache looking at the crack.. called up Toyota Service Center and asked for the price of windscreen replacement.. cost me RM700 plus.. there goes my budget for exterior planning of the car.. why on earth did that stone travel to my windscreen.. shouldve stayed on the road and not flying around hitting peoples windscreen.. hate stone nowadays.. hate them soo soo much..