I was showing a customer how to check when the computer was last defragged. I had defragged it a month ago, so I was expecting a message like "You last defragented this drive 28 day(s) ago".

Nope.

It said the drive was last defragmented 7574 days ago. I figure that was in April, twenty years ago. She (jokingly) said that she didn't know that Gateway built Pentium class machines back then.

I like it when customers have a sense of humor. I had a lady complain the other day because some of the dates on her software were "too old."