Does anyone know why when you prepay for your gas that the pump stops anywhere from are 25-30 cents up to 50 cents short, and then goes really really slow? It seems to me that they could slow it down for maybe the last 4-5 cents and that should be plenty. The other day I stopped for $20 worth and I felt it slow at $19.50. It took almost as long for that last half dollar as it did for the first $19.50 worth. It's just wrong.