I recently finished a long project re-glazing some 240 windows on the south end of an old school in which our local history museum inherited (I am a board member) The of us took on this mammoth task. Two things became a sort of torture. One the windows faced south so we not only had the hot sun on our backs and the glare from the windows but it turned out across the street was a large grazing pasture. At one point the calves were weaned from the mothers and put into separate pens. The constant mooing which went on for a couple of days was hard to bear.