When hearing a story about ethanol subsidies diverting corn from cattle feed and raising its price, angering dairy farmers, I confess my reaction was uncharitable. In fact, my reaction was something like "Oh, are the poor dairy farmers being forced to pay an artificially elevated price for something important to them? Poor babies. I know they would never support anything like that."
Of course, the ethanol subsidies are a terrible idea, too; it's just interesting to see such hypocrisy without any sense of self-awareness or irony.