As told by a Dunkin' employee herself.
I have been working at Dunkin' Donuts for over two years, and during this time, I have progressed from regular crew member to crew coach, and finally, to shift leader. Among my great skills involving the job is my ability to deal with stressful situations, including awful customers. My boss has continuously pointed out the fact that I am able to handle these people with grace and kindness. She herself often finds that she gets snippy with rude customers, but somehow I am able to keep a straight face through these tough times.