The boardroom at Chipotle Mexican Grill might be the ultimate training ground for corporate crisis management. Every day seems to present new challenges. On Thursday, a simple tweet caused Chipotle’s stock price to drop as much as 3.5%.

Eric van Lustbader, author of the Jason Bourne series of thrillers, sent a tweet that said his editor spent seven hours in the emergency room after eating at Chipotle, with doctors surmising that the illness could be traced to unsanitary food handling.

Twitter users noted that the tweet did not provide concrete evidence Chipotle food was to blame, but Forbes noted that Chipotle investors must be “jittery” as the company works to recover from a series of food-borne illnesses over the past year. Responding to media inquiries, Chipotle spokesman Chris Arnold said the company was “aware of the post made on Twitter, however there have been no reports of illnesses at any of our New York restaurants.”

Profit Tracker: Margins Top $50/Head

Last week’s $5 rally in fed cattle prices helped feedyard margins remain above $50 per head, the Sterling Profit Tracker reveals. Profits were limited by a $33 per head increase in the cost of feeder cattle factored against last week’s marketings.

Packer margins declined $48 per head, but packers continued to earn about $150 on every animal processed. With both feedyards and packers showing profits, analysts see some near-term support for feeder cattle prices.

Feeder cattle and calves found a $2 to $7 per cwt. increase last week, with Agricultural Marketing Service reporters noting buyers were optimistic as “analysts and feedyard operators believed that the futures markets appeared to be oversold.”

Friday Funnies

Fun stories we’ve stumbled upon while composing this week’s GTN.

The World’s Biggest Beef Exporter

The U.S. may satisfy some countries desire for high-quality beef, but India holds down the title of largest beef exporter. India poses no danger to U.S. markets, however, as beef from India does not “meet the quality preferences and animal health regulations required in the major markets that import U.S. beef.”