Name a time when your patience was tested, and how you kept your emotions in check.

"When working as a/an (X position title) for (X company), (... X example of a situation when your patience was tested and why). I (... what you did in this situation, e.g., remaining professional, calm and focused on the work notwithstanding your frustration and how you successfully completed the task at hand). Frustrating situations are bound to occur and I do not let these affect my work or relationship with colleagues and customers."