One of these people is not actually a Chipotle employee. Can you pick him or her out?

Charles Dharapak / Associated Press

In Denver on Tuesday, a day before he meets Barack Obama for the first presidential debate, Mitt Romney stopped by local favorite Chipotle for a bite to eat. The national chain was founded in the city in 1993. Accompanied by Ohio Senator Rob Portman, who's playing Obama in debate prep, Romney ordered a burrito bowl with pork, rice, black beans, pico de gallo, and guacamole. And then he stepped around the table to take this epic photo with the staff.

The three workers on the left seem a bit perplexed by the whole preceding. But the guy on the right: Is he surprised? Crazed? Hysterically amused? Leave your intepretations and caption ideas in the comments.

Meanwhile, here are a few more snapshots of candidates mingling with or even assisting workers while on the trail.

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