Was half expecting it to be an error about validating JSON or some such.
I remember getting a worried call from a new mac user who thought someone was messing with their machine. It was coming up in their 3rd party screensaver text 'usernames-ma' .
'Ma' is Irish (all island) for 'mother', and is typically used in 'your mom' type of abusive banter, hence they thought someone had played a prank.
It actually turned out that it was trying to display the machine name 'usernames-mac' but this particular screensaver had a text limit of machinename.length-1 .....