[ music | Sheryl Crow - My Favorite Mistake ]

I had a call a few weeks ago. So far my absolute favorite call. A customer calls, and I'm walking them through various things, and I have to tell them to type in a specific string of letters and numbers. One of the characters was a zero, so as not to confuse it with the letter O I said "zero". The customer then replied, "Is that the number zero or the letter zero?" I kid you not.