Not just the message.
I sent a link to this lot to a friend. He responded with something so funny that I just had to share.
Many moons ago he did some customisation on a system for some users. Not having access to the code, this consisted of working out the function from the results and putting in some replacement modules in. To be 100% sure, he dropped in a little routine to check all the data afterwards and ensure everything was in order. It produced a couple of error messages thus:
"If you are seeing this message, the system is SERIOUSLY fucked. Call <xxxxxxxx> now....." and the usual "Press enter to continue" or somesuch.
Pressing enter gets you:
"You haven't called <xxxxxxxx> have you??? GO AND DO IT NOW!!!!"
One night, some time later, he was awoken by a user whose first question, asked in all seriousness was:
"How the hell have you managed to interface this software to our telephone system?"
Priceless!