The Users Are Nuts
Once had a call passed from the Help-Desk concerning a "Squirrel" error. I thought about contacting Rentakill or the local council's Parks Department, but passed the call instead to the DBAs.
Had another call about a "Norton 12" error on one of our servers. Knowing their software hadn't been ported to AIX, I decided to contact the user. The actual issue was a "nought and 12" error message, but said with a very broad Black Country accent.