Mailbox milk prices do change; this is the reality of the matter and one that dairymen have to deal with. When the price within a year drops more than 30 percent, as it did in the last 12 months, it raises yellow flags. And for many, this means looking for ways to cut ration costs. Milk price changes should not be a surprise. In the recent past, we have experienced similar, if not wider, swings.