Here's the method Chick-fil-A workers use to keep their cool with angry customers

• Fast-food work has become increasingly difficult as dissatisfaction with restaurants grows. 
• At Chick-fil-A, a doc says employees are trained to show compassion to "recover unsatisfied guests."
• Chick-fil-A's workers are also trained on the brand's core values, like saying "my pleasure."

For many, fast-food work has grown more difficult over the past few years as dissatisfied consumers lash out at frontline workers making and serving their meals.