It's something you'll want to remember just in case.
Have you ever called 911? If so, it probably was a phone call meant to save someone's life or report and life-threatening emergency. Perhaps it was emotional or stressful.
One woman called 911 and was so calm, with such a banal reason for the call, that the operator was legitimately confused. It's a good thing he was so well trained.
You'll appreciate this story from beginning to end.