The president of the New York Federal Reserve Bank doesn't normally face a raucous crowd.
But in Queens, New York, on Friday, William Dudley was bombarded with questions about food inflation, and his attempt to put rising commodity prices into a broader economic context only made things worse.
"When was the last time, sir, that you went grocery shopping?" one audience member asked.
...So, Dudley sought an everyday example of a price that is falling.
"Today you can buy an iPad 2 that costs the same as an iPad 1 that is twice as powerful,"
...This prompted guffaws and widespread murmuring from the audience, with one audience member calling the comment "tone deaf."
"I can't eat an iPad," another quipped.