If an industrial plant figures out a new way to turn fries into fuel and starts buying all the fries in the country at any price up to $50 a pound, I do blame them for the resulting price spike. This is not consumer demand.

I don't much blame the factory that's already running 24/7 for failing to catch up in the short term. I'm not going to insist they do the impossible, or that they should have forseen a demand spike that caught us all by surprise.