We can't tell you who, but it is pretty funny.
FORTUNE — As you might imagine, we get a lot of CEOs and executive coming through the Fortune offices. Most are prepared with facts and figures about their industries and many have great anecdotes and advice. Less common are jokes. But today a prominent tech CEO told us a good one. It was written for a recent Silicon Valley soirée but not deployed. It goes like this:
What do you think? Too soon?