During dinner at Google.
Tom: In the Mac operating system, you can change the image that's displayed during a kernel panic. There was an engineer at another company who got tired of his teammates introducing kernel panic bugs. So he changed the image to goatse.cx. You'd be debugging, and a kernel panic would happen and then goatse.cx would fill your screen!
Me: Hee hee!
Tom: The number of kernel panic bugs checked into the codebase went down dramatically after that day.
Me: I bet.
Tom: Can you imagine that happening while you're doing a demo for customers?
Me: Oh my God, during Press Day! Or during the annual stockholder's meeting.
Tom: I wonder how fast your stock price would fall.
Me: You'd be doing your demo, then suddenly kernel panic and goatse.cx! You'd lament, "There's nothing that could be worse than this!" Then you'd switch to a screen showing your stock price plummeting through the floor.
Tom: The plummet would be so fast that you'd underflow and then kernel panic again.
Me: But compared to the picture of the stock price, you'd look at goatse.cx and breathe a big sigh of relief. Whew! Much better.